The Proposal Class 10 MCQ Questions with Answers English Chapter 11

The Proposal Class 10 MCQ Questions with Answers English Chapter 11

Check the below NCERT MCQ Questions for Class 10 English First Flight Chapter 11 The Proposal with Answers Pdf free download. MCQ Questions for Class 10 English with Answers were prepared based on the latest exam pattern. We have provided The Proposal Class 10 English MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-english-with-answers/

MCQ Questions for Class 10 English First Flight Chapter 11 The Proposal with Answers

The Proposal Class 10 MCQ Question 1.
What happens to Lomov when he is in an excited state?
(a) He started running
(b) His heart beat increases.
(c) His brain started working
(d) None of the Above

Answer

Answer: (a) He started running


The Proposal MCQ Class 10 Question 2.
Who is squeezed between Lomov and Natalya emotionally?
(a) Natalya’s father
(b) Natalya’s mother
(c) Natalya’s brother
(d) Natalya’s aunt

Answer

Answer: (a) Natalya’s father


The Proposal MCQ Questions And Answers Class 10 Question 3.
How much are the meadows worth?
(a) 100 roubles
(b) 200 roubles
(c) 300 roubles
(d) 500 roubles

Answer

Answer: (c) 300 roubles


How much are the meadows worth?

MCQ Of The Proposal Class 10 Question 4.
Who gave the meadows to Natalya’s father?
(a) Aunt’s grandmother of Lomov
(b) Aunt’s grandfather of Lomov
(c) Aunt’s sister of Lomov
(d) Aunt’s brother of Lomov

Answer

Answer: (a) Aunt’s grandmother of Lomov


The Proposal Class 10 MCQ Questions Question 5.
What is the dispute over?
(a) Over Oxen Meadows
(b) Over Pigs
(c) Over Buffalo
(d) None of the Above

Answer

Answer: (a) Over Oxen Meadows


Proposal MCQ Class 10 Question 6.
What defect does guess have?
(a) lame
(b) old age
(c) short in the muzzle
(d) all of them

Answer

Answer: (d) all of them


The Proposal MCQs Class 10 Question 7.
According to Lomov, what amount would be good enough for buying squeezer?
(a) 60 Roubles
(b) 35 Roubles
(c) 25 Roubles
(d) 40 Roubles

Answer

Answer: (c) 25 Roubles


Proposal Class 10 MCQ Question 8.
The play is set in which country?
(a) India
(b) France
(c) Russia
(d) Japan

Answer

Answer: (c) Russia


MCQ The Proposal Class 10 Question 9.
What had Natalya been doing when Lomov called for her?
(a) cleaning the house
(b) washing clothes
(c) shelling peas
(d) cooking food

Answer

Answer: (c) shelling peas


MCQ Question Of The Proposal Class 10 Question 10.
What do they argue about after holding each other’s hands?
(a) dogs
(b) land
(c) marriage venue
(d) the cuisine

Answer

Answer: (a) dogs


MCQ From The Proposal Class 10 Question 11.
What was the topic of the second arguement?
(a) the land
(b) the proposal
(c) the dogs
(d) none

Answer

Answer: (c) the dogs


Question 12.
How did Natalya react when her father told Lomov was here to propose her?
(a) she gets angry
(b) she sends her father to get him
(c) she’s amazed
(d) both 2 and 3

Answer

Answer: (d) both 2 and 3


Question 13.
What did Chubukov had to say about the land?
(a) they were his
(b) They were Lomov’s
(c) they were still disputed
(d) they belong to none of them

Answer

Answer: (a) they were his


Question 14.
Why was Natalya arguing about the land?
(a) she can’t stand unfairness
(b) it was worth a lot
(c) she was jealous of Lomov
(d) All of the above

Answer

Answer: (a) she can’t stand unfairness


Question 15.
Which land were they fighting about?
(a) Oxen Meadows
(b) Birchwoods
(c) Burnt Marsh
(d) All of the above

Answer

Answer: (a) Oxen Meadows


Question 16.
“And it’s impossible for me not to marry”. Why does he say so?
(a) He’s 35 already
(b) He suffer from palpitations
(c) He has troubled sleep
(d) All of the above

Answer

Answer: (d) All of the above


Question 17.
Why was Lomov wearing his evening dress?
(a) to pay New Year Eve’s visit
(b) ask for his daughter’s hand in marriage
(c) borrow money
(d) borrow land

Answer

Answer: (b) ask for his daughter’s hand in marriage


Question 18.
Who is the writer of the play “The Proposal”?
(a) Robert Frost
(b) Anton Chekov
(c) Carolyn Wells
(d) Robin Klein

Answer

Answer: (b) Anton Chekov


Who is the writer of the play "The Proposal"?

We hope the given NCERT MCQ Questions for Class 10 English First Flight Chapter 11 The Proposal with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 10 English The Proposal MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

The Hundred Dresses Part 1 Class 10 MCQ Questions with Answers English Chapter 5

The Hundred Dresses Part 1 Class 10 MCQ Questions with Answers English Chapter 5

In Online Education Check the below NCERT MCQ Questions for Class 10 English First Flight Chapter 5 The Hundred Dresses Part 1 with Answers Pdf free download. MCQ Questions for Class 10 English with Answers were prepared based on the latest exam pattern. We have provided The Hundred Dresses Part 1 Class 10 English MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-english-with-answers/

MCQ Questions for Class 10 English First Flight Chapter 5 The Hundred Dresses Part 1 with Answers

Hundred Dresses Part 1 MCQ Question 1.
Why does Wanda say that she has a hundred dresses?
(a) Because she has.
(b) To counter other girls.
(c) She loves to rant.
(d) None of the Above

Answer

Answer: (b) To counter other girls.


The Hundred Dresses Part 1 MCQ Question 2.
How other girls treat Wanda?
(a) She doesn’t make fun of Wanda.
(b) She like Wanda a lot.
(c) She hated Wanda a lot.
(d) None of the Above

Answer

Answer: (a) She doesn’t make fun of Wanda.


The Hundred Dresses Part 1 MCQs Question 3.
Why does Maddie stand by and not do anything?
(a) Because she was herself victim
(b) Because she doesn’t have courage
(c) Because she doesn’t want to
(d) None of the Above

Answer

Answer: (b) Because she doesn’t have courage


MCQ Of Hundred Dresses Part 1 Question 4.
Who secretly disliked how Wanda was being treated?
(a) Peggy
(b) Cecile
(c) Maddie
(d) Jake

Answer

Answer: (c) Maddie


Who secretly disliked how Wanda was being treated?

The Hundred Dresses MCQ Question 5.
Who lived in Boggins Heights?
(a) Maddie
(b) Peggy
(c) Wanda
(d) Cecile

Answer

Answer: (c) Wanda


Hundred Dresses MCQ Question 6.
What was Wanda’s full name?
(a) Wanda Polenski
(b) Wanda Petronski
(c) Wanda Patrick
(d) Wanda Polish

Answer

Answer: (b) Wanda Petronski


Hundred Dresses Class 10 MCQ Question 7.
How many drawings did Wanda draw?
(a) 100
(b) 10
(c) 50
(d) 150

Answer

Answer: (a) 100


The Hundred Dresses Class 10 MCQ Question 8.
What was Maddie’s full name?
(a) Madgeline
(b) Madeline
(c) Maddeline
(d) Madger

Answer

Answer: (b) Madeline


Class 10 Hundred Dresses Part 1 MCQ Question 9.
Why did Peggy say “and I thought I could draw”?
(a) she’d won the medal always
(b) Wanda’s drawings were amazing
(c) she thought Wanda could draw better
(d) All of the above

Answer

Answer: (d) All of the above


The Hundred Dresses 1 MCQ Question 10.
Who did Maddie think would win the contest?
(a) Wanda
(b) Maddie
(c) Peggy
(d) None of the above

Answer

Answer: (c) Peggy


MCQ Of The Hundred Dresses Part 1 Question 11.
What did the drawing and colouring contest mean for the girls and boys?
(a) designing dresses and motorboats
(b) designing interiors and bikes
(c) designing dresses and bikes
(d) designing interiors and motorboats

Answer

Answer: (a) designing dresses and motorboats


MCQ On Hundred Dresses Part 1 Question 12.
What reason did Maddie give herself to justify teasing Wanda?
(a) Wanda used to lie about her dresses
(b) Wanda deserved it
(c) Peggy was the best liked girl and couldn’t do anything wrong
(d) both 1 and 2

Answer

Answer: (c) Peggy was the best liked girl and couldn’t do anything wrong


Hundred Dresses 1 MCQ Question 13.
How many shoes did Wanda say she had?
(a) 50
(b) 100
(c) 10
(d) 60

Answer

Answer: (d) 60


The Hundred Dresses Part 1 MCQ With Answers Question 14.
What tells you that Peggy wasn’t cruel?
(a) protected small children from bullies
(b) couldn’t stand animals getting mistreated
(c) did not make Wanda cry
(d) all of the above

Answer

Answer: (d) all of the above


Class 10 English Hundred Dresses Part 1 MCQ Question 15.
Why did “they” wait for Wanda?
(a) they were friends
(b) to make fun of her
(c) they cared about her
(d) they missed her

Answer

Answer: (b) to make fun of her


MCQs Of Hundred Dresses Part 1 Question 16.
Which classroom did they all sit in?
(a) Room fifteen
(b) Room thirteen
(c) Room twelve
(d) Room eleven

Answer

Answer: (b) Room thirteen


Question 17.
Where in the classroom does Wanda sit?
(a) end corner
(b) middle
(c) front
(d) rotational

Answer

Answer: (a) end corner


Where in the classroom does Wanda sit?

Question 18.
Who is the author of “The Hundred Dresses”?
(a) Liam O’ Flaherty
(b) Frederick Forsyth
(c) Roal Dahl
(d) El Bsor Ester

Answer

Answer: (d) El Bsor Ester


We hope the given NCERT MCQ Questions for Class 10 English First Flight Chapter 5 The Hundred Dresses Part 1 with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 10 English The Hundred Dresses Part 1 MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 10 Civics Chapter 3 Democracy and Diversity with Answers

MCQ Questions for Class 10 Civics Chapter 3 Democracy and Diversity with Answers

Check the below NCERT MCQ Questions for Class 10 Civics Chapter 3 Democracy and Diversity with Answers Pdf free download. MCQ Questions for Class 10 Social Science with Answers were prepared based on the latest exam pattern. We have Provided Democracy and Diversity Class 10 Civics MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-social-science-with-answers/

Democracy and Diversity Class 10 MCQs Questions with Answers

Choose the correct option:

Democracy And Diversity Class 10 MCQ Question 1.
The Civil Rights Movement in the US was led by
(a) Martin Luther King Sr.
(b) Martin Luther King Jr.
(c) Nelson Mandela
(d) Abraham Lincoln

Answer

Answer: (b) Martin Luther King Jr.


Class 10 Civics Chapter 3 MCQ With Answers Question 2.
Homogeneous societies exist in
(a) Germany
(b) Sweden
(c) both (a) and (b)
(d) neither (a) nor (b)

Answer

Answer: (c) both (a) and (b)


Democracy And Diversity MCQ Question 3.
The Black Power Movement emerged in
(a) 1966
(b) 1970
(c) 1971
(d) 1990

Answer

Answer: (a) 1966


Class 10 Civics Chapter 3 MCQ Question 4.
African-Americans were the descendants of
(a) Americans
(b) Africans
(c) Indians
(d) Germans

Answer

Answer: (b) Africans


African-Americans were the descendants of

The Diversity In Social Life Is Reflected In MCQ Question 5.
The aim of the Civil Rights Movement was to end
(a) child abuse in the UK
(b) racism in the US
(c) slavery in France
(d) none of the above.

Answer

Answer: (b) racism in the US


MCQ Of Democracy And Diversity Class 10 Question 6.
Which one of the following statements is not correct about social division?
(a) Too many small divisions are better than a single big division.
(b) Politics is a force of unity when expressions of various kinds of social divisions occur.
(c) It is only in countries like India that we have social divisions.
(d) Assertion of social diversities in a country need not be seen as a source of danger.

Answer

Answer: (c) It is only in countries like India that we have social divisions.


Ch 3 Civics Class 10 MCQ Question 7.
What does the “Civil Rights Movement of USA” signify?
(a) A movement against the discrimination
(b) A reform movement for the Civil Rights of the citizens
(c) A reform movement against the social discriminations of Afro-Americans
(d) None of the above

Answer

Answer: (c) A reform movement against the social discriminations of Afro-Americans


Democracy And Diversity Class 10 MCQ Test Question 8.
Which three countries faced the problem of social division?
(a) United Kingdom, USA and India
(b) Belgium, Sri Lanka and United Kingdom
(c) Sri Lanka, Canada and India
(d) Belgium, Germany and USA

Answer

Answer: (b) Belgium, Sri Lanka and United Kingdom


MCQ On Democracy And Diversity Question 9.
African – American is the term used for:
(a) Africans who were brought into America as slaves
(b) Black Americans of America
(c) Martin Luther and his group
(d) John Corlos and Smith

Answer

Answer: (a) Africans who were brought into America as slaves


Class 10 Democracy And Diversity MCQ Question 10.
To show his support to the protesting. American athletes during the award ceremony of Mexico Olympics, Peter Norman
(a) wore no socks
(b) wore a human right badge
(c) wore a black scarf
(d) wore a string of beads

Answer

Answer: (b) wore a human right badge


Civics Class 10 Chapter 3 MCQ Question 11.
What is the society with similar kinds of people called?
(a) Homogeneous
(b) Heterogeneous
(c) Humane
(d) Humble

Answer

Answer: (a) Homogeneous
Explanation:
Homogeneous society are the society that has similar kinds of people, especially where there are no significant ethnic differences.


Democracy And Diversity MCQs Question 12.
Name the prominent religious group in Northern Ireland and the Netherlands?
(a) Judaism
(b) Christianity
(c) Islam
(d) None of the above

Answer

Answer: (b) Christianity
Explanation:
Northern Ireland and the Netherlands both are predominantly Christian but divided between Catholics and Protestants.


MCQs Of Democracy And Diversity Question 13.
Which of the sentence is correct?
(a) Every social difference does not lead to social division
(b) Social differences divide similar people from one another
(c) They also unite very different people
(d) All the above

Answer

Answer: (d) All the above
Explanation:
Every social difference does not lead to social division. Social differences divide similar people from one another, but they also unite very different people.


Ncert Solutions For Class 10 Civics Chapter 3 Extra Short Notes MCQ Question 14.
Who led the Civil Rights Movement in USA?
(a) Martin Luther
(b) Martin Luther King Jr
(c) Martin Davis
(d) Benjamin Franklin

Answer

Answer: (b) Martin Luther King Jr
Explanation:
Civil Rights Movement in the USA (1954-1968) led by Martin Luther King Jr. refers to a set of events and reform movements aimed at abolishing legal racial discrimination against African-Americans.


Democracy And Diversity Class 10 MCQs Question 15.
Which of these sentences is not correct about the “Black Power Movement”?
(a) It emerged in 1966
(b) It lasted till 1975
(c) It was a more militant movement
(d) It advocated peaceful methods

Answer

Answer: (d) It advocated peaceful methods
Explanation:
The Black Power movement emerged in 1966 and lasted till 1975, which was a more militant anti-racist movement, advocating even violence if necessary to end racism in the US.


Question 16.
Which one of these example of not accommodating other communities demands?
(a) Sri Lanka
(b) Yugoslavia
(c) Belgium
(d) Both a and b

Answer

Answer: (d) Both a and b
Explanation:
The Tamil community in Sri Lanka and in Yugoslavia, the leaders of different ethnic communities presented their demands in such a way that these could not be accommodated within a single country.


Question 17.
Dealing with social divisions which one of the following statement is not correct about democracy?
(a) Democracy is the best way to accommodate social diversity.
(b) Democracy always leads to disintegration of society on the basis of social divisions.
(c) In a democracy, it is possible for communities to voice their grievances in a peaceful manner.
(d) Due to political competition in a democracy, social divisions get reflected in politics.

Answer

Answer: (b) Democracy always leads to disintegration of society on the basis of social divisions.
Explanation:
Democracy is the best way to accommodate social diversity. In a democracy it is possible for communities to voice their grievances in a peaceful manner. Due to political competition in a democracy, social divisions get reflected in politics.


Question 18.
When did the Nationalists and the UK government arrive at an agreement?
(a) 1992
(b) 1995
(c) 1998
(d) 1999

Answer

Answer: (c) 1998
Explanation:
It was only in 1998 that the UK government and the Nationalists government arrive at an agreement.


Question 19.
Which of these sentence is correct?
(a) The Catholics in Northern Ireland were represented by Nationalist parties.
(b) They demand Northern Ireland should be unified with the Republic of Ireland.
(c) Republic of Ireland was a predominantly Catholic country.
(d) All of the above

Answer

Answer: (d) All of the above
Explanation:
The Catholics were represented by Nationalist parties who demanded that Northern Ireland be unified with the Republic of Ireland, a predominantly Catholic country.


Which of these sentence is correct?

Question 20.
Which of these sentences is not true?
(a) Democracy involves competition among various political parties.
(b) Their competition tends to unite the country if they compete in terms of existing social divisions.
(c) Social divisions change into political division and lead to conflict, violence etc.
(d) It can even lead to the disintegration the country.

Answer

Answer: (b) Their competition tends to unite the country if they compete in terms of existing social divisions.
Explanation:
Democracy involves competition among various political parties. Social divisions change into political divisions and lead to conflict, violence etc. It can even lead to the disintegration the country.


Source-based Questions:

Read the following conversation taken from Textbook Page 31.

Let us Debate

Some Dalit groups decided to participate in the UN Conference Against Racism in Durban in 2001, demanding the inclusion of caste in the agenda of this conference. Here are three reactions to this move: Amandeep Kaur (a government official): Our Constitution declares caste discrimination to be illegal. If some caste discrimination continues, it is an internal matter. I am opposed to this being raised in an international forum.

Oinam (a sociologist): I am opposed to this because caste and race are not similar divisions. Caste is a social division, while race is a biological one. Raising caste in this conference on racism would mean equating the two.

Ashok (a Dalit activist): The argument about internal matter is a way of preventing open discussion of oppression and discrimination. Race is not purely biological. It is as much a legal and sociological category as caste. Caste discrimination must be raised in this conference.

Question:
Which of the three opinions do you agree with most and why?

Answer

Answer:
I do agree with the opinion expressed by Ashok who is a dalit activist. He is right in saying that the issue of caste discrimination need to be raised in an international forum along with the issue of racism. Unless there is an open discussion of oppression and discrimination, these issues continue to exist in our societies.


Picture-based Questions:

Look at the following cartoon taken from NCERT Textbook Page 32 and answer the question that follow:
MCQ Questions for Class 10 Civics Chapter 3 Democracy and Diversity with Answers 1

Answer

Answer: The above cartoon focuses on the difference between the Blacks and Whites that existed in the US some decades ago. The blacks were poor and discriminated against whereas the whites were all powerful and exploited the blacks.


We hope the given NCERT MCQ Questions for Class 10 Civics Chapter 3 Democracy and Diversity with Answers Pdf free download will help you. If you have any queries regarding Democracy and Diversity CBSE Class 10 Civics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 10 Economics Chapter 5 Consumer Rights with Answers

MCQ Questions for Class 10 Economics Chapter 5 Consumer Rights with Answers

Check the below NCERT MCQ Questions for Class 10 Economics Chapter 5 Consumer Rights with Answers Pdf free download. MCQ Questions for Class 10 Social Science with Answers were prepared based on the latest exam pattern. We have Provided Consumer Rights Class 10 Economics MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-social-science-with-answers/

Consumer Rights Class 10 MCQs Questions with Answers

Choose the correct option:

Consumer Rights Class 10 MCQ Question 1.
Which one of the following days is being observed as ‘National Consumers Day’ in India?
(a) 24 December
(b) 25 December
(c) 10 December
(d) 31 december

Answer

Answer: (a) 24 December


Class 10 Economics Chapter 5 MCQ With Answers Question 2.
ISI mark can be seen on which of the following items?
(a) Jewellery
(b) Edible oil
(c) Electrical appliances
(d) Cereals

Answer

Answer: (c) Electrical appliances


ISI mark can be seen on which of the following items?

Consumer Rights MCQ Question 3.
‘Hallmark’ is used as a logo for which one of the following?
(a) Agricultural products
(b) Jewellery
(c) Electrical goods
(d) Electronic goods

Answer

Answer: (b) Jewellery


MCQ On Consumer Rights And Protection Question 4.
The Consumer Protection Act or COPRA was enacted in the year
(a) 1985
(b) 1986
(c) 1987
(d) 1988

Answer

Answer: (b) 1986


MCQ On Consumer Rights Class 10 Question 5.
When was the ‘Right to Information’ Act passed?
(a) In January 2002
(b) In March 2004
(c) In October 2005
(d) In July 2007

Answer

Answer: (c) In October 2005


MCQ On Consumer Rights Question 6.
Which of the following is not a right of consumers?
(a) Right to safety
(b) Right to be informed
(c) Right to choose
(d) Right to constitutional remedies

Answer

Answer: (d) Right to constitutional remedies


MCQ Questions On Consumer Rights Class 10 Question 7.
When did United Nations adopt the UN Guidelines for Consumer Protection?
(a) 1985
(b) 1990
(c) 1995
(d) 1999

Answer

Answer: (a) 1985


MCQ Questionnaire On Consumer Awareness Question 8.
Which of the following is not a function of Consumer Protection Councils?
(a) To create awareness of consumer rights among consumers.
(b) To guide consumers on how to file cases in consumer courts.
(c) To provide compensation to consumers when they are cheated by shopkeepers.
(d) To represent consumers in Consumer Courts at times.

Answer

Answer: (c) To provide compensation to consumers when they are cheated by shopkeepers.


Consumer Rights MCQ Questions Question 9.
What was the name given to the agency at the global level for the protection of consumer rights?
(a) Consumer Court of Justice
(b) International Consumer Forum
(c) Consumers Commission
(d) Consumers International

Answer

Answer: (d) Consumers International


MCQ Questions On Consumer Awareness Question 10.
Which one of the following does not provide certificate of standardization in India?
(a) ISI
(b) Agmark
(c) Hallmark
(d) COPRA

Answer

Answer: (d) COPRA


Question 11.
Suppose you want to buy toothpaste and the shop owner says that he/she can sell the toothpaste only if you buy a toothbrush, which of your right is being violated by the shopkeeper?
(a) Right to safety
(b) Right to be informed
(c) Right to choose
(d) Right to represent

Answer

Answer: (c) Right to choose


Question 12.
Which of the following is not a right of consumers?
(a) Right to safety
(b) Right to be informed
(c) Right to choose
(d) Right to constitutional remedies

Answer

Answer: (d) Right to constitutional remedies


Question 13.
In October 2005, the Government of India enacted a law known as:
(a) Right to Choose Act
(b) Right to Information Act
(c) Women Reservation Act
(d) Anti-corruption Act

Answer

Answer: (b) Right to Information Act


Question 14.
Which one of the following is not true regarding the Right to Safety?
(a) Right to be protected against unsafe appliances.
(b) Right to protected against unsafe working conditions.
(c) Right to seek information about functioning of government departments.
(d) Right to be protected against services which are hazardous to life.

Answer

Answer: (c) Right to seek information about functioning of government departments.


Question 15.
Which of the following laws was enacted by the Government of India in the year 2005?
(a) The Right to Information Act
(b) The Consumer Protection Act
(c) The Right to Education Act
(d) The Right to Property Act

Answer

Answer: (a) The Right to Information Act


Question 16.
Who amongst the following is protected through rules and regulations in the market place?
(a) The shopkeepers
(b) The manufactures
(c) The consumers
(d) The suppliers

Answer

Answer: (c) The consumers


Question 17.
Marketing of goods and services which are hazardous to life and property is covered under:
(a) right to be protected
(b) right to be assured
(c) right to seek redressal
(d) right to be informed

Answer

Answer: (a) right to be protected


Question 18.
Consumer Protection Act, 1986 covers the whole of India except:
(a) the state of Jammu and Kashmir
(b) Andaman and Nicobar Islands
(c) Lakshadweep
(d) None of the above

Answer

Answer: (a) the state of Jammu and Kashmir


Question 19.
Who can seek information under the RTI Act, 2005?
(a) A group of persons
(b) An individual citizen
(c) A registered company
(d) An association / society

Answer

Answer: (b) An individual citizen


Question 20.
Consumer Protection Act (COPRA) was enacted by Indian Government in:
(a) 1986
(b) 1983
(c) 1988
(d) 1985

Answer

Answer: (a) 1986


Question 21.
MRP on a product represents:
(a) minimum retail price
(b) maximum retail price
(c) micro retail price
(d) none of the above

Answer

Answer: (b) maximum retail price


Question 22.
Consumers International was created by:
(a) UNESCO
(b) UN
(c) UNICEF
(d) World Bank

Answer

Answer: (b) UN


Question 23.
Which logo or mark you will have to look for on a biscuit packet?
(a) Agmark
(b) ISI mark
(c) Hallmark
(d) ISO mark

Answer

Answer: (a) Agmark


Question 24.
Factors which cause the exploitation of the consumer:
(a) Limited and wrong information
(b) Illiteracy and ignorance of the consumer
(c) Few sellers and limited competition
(d) All the above

Answer

Answer: (d) All the above


Question 25.
To protect themselves what do consumers need?
(a) Consumer Forums
(b) Consumer Protection Councils
(c) Consumer movement
(d) Consumer awareness

Answer

Answer: (d) Consumer awareness


Question 26.
Which mark should you look for while buying honey?
(a) ISI
(b) ISO
(c) Agmark
(d) ISO

Answer

Answer: (c) Agmark


Question 27.
Name the court to which a consumer can approach, having a claim of Rs. 40 lakhs
(a) National Consumer Court
(b) State Consumer Court
(c) District Consumer Court
(d) None of the above

Answer

Answer: (b) State Consumer Court


Name the court to which a consumer can approach, having a claim of Rs. 40 lakhs

Question 28.
The organisation which lays down standards of products at the international level is called:
(a) ISI
(b) ISRO
(c) ISO
(d) WCF

Answer

Answer: (c) ISO


We hope the given NCERT MCQ Questions for Class 10 Economics Chapter 5 Consumer Rights with Answers Pdf free download will help you. If you have any queries regarding Consumer Rights CBSE Class 10 Economics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

The Ball Class 10 MCQ Questions with Answers English Poem 5

The Ball Class 10 MCQ Questions with Answers English Poem 5

Check the below Online Education NCERT MCQ Questions for Class 10 English First Flight Poem 5 The Ball with Answers Pdf free download. MCQ Questions for Class 10 English with Answers were prepared based on the latest exam pattern. We have provided The Ball Class 10 English MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-english-with-answers/

MCQ Questions for Class 10 English First Flight Poem 5 The Ball with Answers

The Ball Poem MCQ Class 10 Question 1.
Who is the poet of the poem ‘The Ball Poem’?
(a) Sylvia Plath
(b) W.B Yeats
(c) Robert Frost
(d) John Berryman.

Answer

Answer: (d) John Berryman.


The Ball Poem Class 10 MCQ Question 2.
Why are the boy’s eyes desperate?
(a) Because he has lost his ball.
(b) Because he has lost his money.
(c) Because he has lost his gloves
(d) None of the Above

Answer

Answer: (a) Because he has lost his ball.


Why are the boy’s eyes desperate?

Ball Poem MCQ Class 10 Question 3.
What does ‘in the world of possessions’ means?
(a) Love
(b) Lust
(c) Materialistic things
(d) None of the Above

Answer

Answer: (c) Materialistic things


The Ball Poem MCQs Class 10 Question 4.
Where was the boy staring down?
(a) the sea
(b) the ocean
(c) the harbour
(d) the lake

Answer

Answer: (c) the harbour


MCQ Of The Ball Poem Class 10 Question 5.
Name the literary device used in “And no one buys a ball back.”
(a) Metaphor
(b) Simile
(c) Alliteration
(d) Anaphora

Answer

Answer: (c) Alliteration


Ball Poem Class 10 MCQ  Question 6.
Why does the poet decide not to condole the boy?
(a) He is busy
(b) He is indifferent
(c) It will be of no use
(d) He is happy

Answer

Answer: (c) It will be of no use


The Ball Poem MCQ Class 10 Question 7.
According to the poet, what is the child learning?
(a) to bear loss
(b) to take care of things
(c) to be responsible
(d) to be careful

Answer

Answer: (a) to bear loss


Class 10 The Ball Poem MCQ Question 8.
What does a ball cost?
(a) 5 dimes
(b) 10 dimes
(c) 1 dime
(d) 4 dimes

Answer

Answer: (c) 1 dime


MCQ Of Ball Poem Class 10 Question 9.
What is the boy playing with?
(a) bat
(b) ball
(c) car
(d) bus

Answer

Answer: (b) ball


Class 10 English The Ball Poem MCQ Question 10.
Name the literary device used in “Merrily bouncing, down the street, and then Merrily over — there it is in the water!”
(a) Metaphor
(b) Simile
(c) Alliteration
(d) Anaphora

Answer

Answer: (d) Anaphora


Name the literary device used in "Merrily bouncing, down the street, and then Merrily over — there it is in the water!"

We hope the given NCERT MCQ Questions for Class 10 English First Flight Poem 5 The Ball with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 10 English Poem The Ball MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Students can also read MCQ Questions for Class 10 Civics Chapter 2 Federalism Questions with Answers hope will definitely help for your board exams. https://ncertmcq.com/mcq-questions-for-class-10-social-science-with-answers/

Federalism Class 10 MCQs Questions with Answers

Federalism Class 10 MCQ Question 1.
Fill in the blank by choosing the most appropriate option:
……………….. is a system of government in which the power is divided between a central authority and various constituent units of the country.
(a) Dictatorship
(b) Unitary system
(c) Monarchy
(d) Federalism
Answer:
(d) Federalism

Class 10 Federalism MCQ Question 2.
Fill in the blank by choosing the most appropriate option:
In a federal system, the central government…………..order the state government to do something.
(a) Can
(b) Cannot
(c) May
(d) Should
Answer:

Federalism MCQ Class 10 Question 3.
Which subject does not come under the State List in India?
(a) Police
(b) Agriculture
(c) Banking
(d) Trade
Answer:
(c) Banking

Explanation: Banking comes under the Union List.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

MCQ Of Federalism Class 10 Question 4.
On which of the following subjects can both the Union as well as the State Governments make laws?
(a) Communications
(b) Defence
(c) Trade Unions
(d) Agriculture
Answer:
(c) Trade Unions

Explanation: Trade unions is a part of a concurrent list. On a concurrent list, both the state and central governments can make laws.

Class 10 Civics Chapter 2 MCQ With Answers Question 5.
Based on the table below, answer the question that follows:
Class 10 Civics Chapter 2 MCQ With Answers
Which is the second most commonly spoken language according to the table?
(a) Hindi
(b) Bodo
(c) Gujarati
(d) Bengali
Answer:
(d) Bengali

Explanation:
Hindi: 43%
Bodo: 0.12%
Gujarati: 4.58%
Bengali: 8.03%

Class 10 Civics Chapter 2 MCQ Question 6.
States such as Assam, Nagaland, Arunachal Pradesh and Mizoram enjoy special powers under certain provisions of the Constitution of India (Article 371), under which context do they get these provisions?
(a) Their historical circumstances
(b) Protection of land rights of indigenous people
(c) Special provisions for agriculture
(d) Preferential employment in government services.
Answer:
(c) Special provisions for agriculture.

MCQ On Federalism Class 10 Question 7.
On which basis were states like Nagaland, Uttarakhand and Jharkhand created?
(a) On the basis of history
(b) On the basis of culture and ethnicity
(c) On the basis of religion
(d) On the basis of administrative efficiency
Answer:
(b) On the basis of culture and ethnicity

Ch 2 Civics Class 10 MCQ Question 8.
There are some units of the Indian Union that enjoy very little power. These are called:
(a) Cities
(b) Towns
(c) Villages
(d) Union Territories
Answer:

Federalism Class 10 MCQ With Answers Question 9.
What is true regarding sources of revenue in a federal system?
(a) States have no financial powers.
(b) States are dependent on revenue on the central government.
(c) Sources of revenue for each level of government are clearly specified in the constitution to ensure its financial autonomy.
(d) The Centre has no financial autonomy.
Answer:
(c) Sources of revenue for each level of government are clearly specified in the constitution to ensure its financial autonomy.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

MCQ Federalism Class 10 Question 10.
Consider the following statements regarding language policy of Indian federation:
(1) Hindi was identified as the official language.
(2) Besides Hindi, there are 21 other languages recognised as scheduled languages.
(3) English can be used along with Hindi for official purposes.
Choose the combination that provides the correct statements) from the following :
(a) (1) and (3)
(b) (1) and (2)
(c) only (1)
(d) (1), (2) and (3)
Answer:
(d) (1), (2) and (3).

Civics Chapter 2 Class 10 MCQ Question 11.
what type of distribution of powers does the Indian Constitution provide for?
(a) Single-fold
(b) Two-fold
(c) Three-fold
(d) Four-fold
Answer:

Class 10 Civics Ch 2 MCQ Question 12.
Who presides over the meetings of Municipal Corporations?
(a) District Magistrate
(b) Mayor
(c) Deputy Mayor
(d) Governor
Answer:
(b) Mayor

Explanation: The head of the municipal corporation is called mayor.

Related Theory
The Mayor is the first citizen of the city and is elected by the members of the municipal corporation for the period of 5 year.

MCQs Of Federalism Class 10 Question 13.
How many languages are included in the Eighth Schedule of the Indian Constitution?
(a) 20
(b) 21
(c) 22
(d) 24
Answer:
(c) 22

Explanation: These 22 languages are calLed ‘Scheduled Languages.’

How many languages are included in the Eighth Schedule of the Indian Constitution?

Civics Class 10 Chapter 2 MCQ Question 14.
Which of the following pair of subjects is incorrect?
(a) Police and agriculture
(b) Banking and currency
(c) Computer software and trade unions
(d) Marriage and adoption
Answer:

Civics Ch 2 Class 10 MCQ Question 15.
Which of the following group of countries are an example of coming together federation?
(a) India, USA, Belgium
(b) USA, Switzerland, Australia
(c) India, Belgium, Spain
(d) USA, Spain, Australia
Answer:
(b) USA, Switzerland, Australia

Question 16.
Study the given picture and identify which of the following options best signifies this cartoon?
MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers 2
(a) Sharing of responsibility between Centre and State
(b) Centre undermining the power of States
(c) States pleading from centre for more power
(d) Misuse of power by the States
Answer:

Question 17.
Which of the following pair of languages is NOT included in the Eighth Schedule of the Indian Constitution?
(a) Pali and Tulu
(b) Bodo and Maithili
(c) Nepali and Oriya
(d) Sindhi and Urdu
Answer:
(a) Pali and Tulu

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 18.
Which of the following pairs of subjects are NOT associated with the union list?
(a) Education and Marriage
(b) Communications and currency
(c) Foreign Affairs and Currency
(d) Banking and Defence
Answer:
(a) Education and Marriage

Question 19.
Which of following language is spoken by the majority of our population?
(a) English
(b) Hindi
(c) Bengali
(d) Punjabi
Answer:
(b) Hindi

Explanation: No one language is the mother tongue of the majority of our population. Hindi is the mother tongue of only about 41 per cent Indians which is less than the 50 per cent of our total population.

Question 20.
How is Panchayat Samiti formed?
(a) By a few gram panchayats when are grouped together.
(b) By most members of the zila parishad
(c) By all MPs and MLAs in the block
(d) None of the above
Answer:
(a) By a few gram panchayats when are grouped together.

Explanation: Panchayat Samiti is also called Block or Mandal. The members of this local body are elected by all the panchayat members in that area.

Related Theory
All the Panchayat Samiti or Mandats in a district together constitute the zila Parishad. Most members of the zila parishad are elected which includes the Lok Sabha and MLAs of that district and another official of other district-level bodies. Zila parishad chairperson is the political head of the zila Parishad.

Question 21.
Which of the following is an advantage of the local government in India?
(a) It has deepened the democracy in our country
(b) It has uprooted the democracy at local level in our country
(c) It has failed in conducting the regular elections of local bodies
(d) It has given more power to the local government when compared to the centre.
Answer:
(a) It has deepened the democracy in our country

Identify the following on basis of the hints given:

Question 22.
Identify the country:
(1) The country shifted from unitary to federal form of government.
(2) The country gave regional governments constitutional powers in 1993.
(3) The country reduced the powers of the central government through an amendment.
Answer:

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 23.
Identify the type of Government:
(1) There are two or more levels/tiers of governments.
(2) The jurisdictions of the respective levels or tiers of government are specified in the constitution.
(3) No government is subordinate to another.
Answer:
Federal Government

Explanation: Federal governments establish two or more tiers of each government and each government has its own powers and jurisdiction as given by the constitution. All levels are equal to one another.

Question 24.
Identify the institution:
(1) It resolves disputes between the states and state and centre.
(2) It interprets the constitution.
(3) It acts like an umpire and decides neutrally.
Answer:
Courts or Judiciary

Explanation: The highest court or the Supreme Court acts as an umpire if disputes arise between different levels of government in the exercise Of their respective powers. It has powers to interpret the constitution.

Correct and Rewrite/ True-False
State whether the following statements are True or False. If false, correct the statement.

Question 25.
In a federal government, different tiers of government govern the same citizens, but each tier has its own jurisdiction in specific matters of legislation, taxation and administration.
Answer:
True

Question 26.
The exact balance of power between the central and the state government is the same in every federation.
Answer:

Question 27.
The Constitution of India clearly provided a twofold distribution of legislative powers between the Union Government and the State Governments.
Answer:
False

The Constitution clearly provided a threefold distribution of legislative powers between the Union Government and the State Governments.

Explanation: It lays down subjects in form of three lists.

Question 28.
According to the constitution, the use of English for official purposes was to stop in 1956.
Answer:
According to the constitution, the use of English for official purposes was to stop in 1965.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 29.
At least two-third of all positions are reserved for women at Local level.
Answer:
At least one-third of all positions are reserved for women at local level.

Fill in the blanks with suitable information:

Question 30.
A ……….. has two levels of government.
Answer:
Federation

Question 31.
Indian Union is based on the principles of
Answer:
Federalism

Question 32.
Banking is included in the……………. List.
Answer:

Question 33.
……….. makes laws on Concurrent list subjects.
Answer:
Both States and the central government

Question 34.
…………. runs the Union Territories
Answer:
Central government.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 35.
The subjects that do not fall in any of the three lists are called……………. subjects.
Answer:
Residuary

Explanation: Subjects Like computer software that came up after the constitution was made are called residuary subjects and the union or central government has the power to legislate on these subjects.

Question 36.
The ……………. declared India as a Union of States.
Answer:
Constitution

Explanation: Indian constitution declares India as a union of states. It is an example of holding together federation where a large country decides to divide its power between the constituent states and the national or central government. In this system, generally central government is more powerful than its constituent units.

Question 37.
In 1956, an act passed by the Government in Sri Lanka recognised the Sinhala Language as the language of the state and disregard the …………… language.
Answer:

Question 38.
India, Spain and Belgium are examples of the …………….. type of federations.
Answer:
Holding Together

Explanation: There are two types of federations:

  1. The first type is ‘Coming Together Federation’ where states come together to form a bigger unit by pooling sovereignty and retaining identities. USA, Australia and Switzerland are the examples of coming together federations.
  2. The second type is where a large country decides to divide its power between the constituent states and the central government. India, Spain and Belgium are examples of this kind of‘holding together’ federations.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 39.
Australia is an example of type of federation.
Answer:
Coming together

Explanation: When independent States come together on their own to form a bigger unit, so that by pooling sovereignty and retaining identity they can increase their security, the type of federation is called Coming Together Type of federation. Another example is USA.

Match the Columns Choose the correct pairs:

Question 40.
Match the following subjects from column A with the lists given in column B:

Column A (Subjects)

Column B (Lists)

(a) Banking (i) State List
(b) Police (ii) Union List
(c) Computer software (iii) Concurrent List
(d) Education (iv) Residuary subject

Answer:

Column A (Subjects)

Column B (Lists)

(a) Banking (ii) Union List
(b) Police (i) State List
(c) Computer software (iv) Residuary subject
(d) Education (iii) Concurrent List

Explanation: Union List includes the subjects of national importance such as banking, defence, foreign affairs and the union government has the right to make laws on these subjects.

State list includes the subjects of state and Local importance such as police, trade, agriculture etc. and state government can make laws on these subjects.

The concurrent list includes subjects like education, forest, trade union, marriage etc. and both central and state governments can make laws on these subjects but in case if their laws conflict with each other, then the central government Law will be implemented.

On residuary subjects, central government has the power to make laws.

Related Theory
The constitution clearly provides a three-fold distribution of legislative powers between the Union Government and the State Governments via union list (97 subjects), state list (66 subjects), concurrent list (47 subjects) and the subjects which are not included in these lists are known as ‘residuary subjects.

Assertion Reasoning questions Class 10 Civics Chapter 2

In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R). Select the correct answers to codes (a), (b), (c) or (d) as given below:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(c) (A) is correct but (R) is wrong.
(d) (A) is wrong but (R) is correct.

Question 41.
Assertion (A): Belgium shifted from a unitary to a federal form of government.
Reason (R): Federal Governments last longer.
Answer:
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A).

Explanation: Federal governments are more stable, more participative and can handle ethnic conflicts and divisions better than unitary governments.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 42.
Assertion (A): Tamil leaders want Sri Lanka to become a federal system.
Reason (R): Federal systems establish a peaceful and stable environment in the country.
Answer:

Question 43.
Assertion (A): The fundamental provisions of the constitution cannot be unilaterally changed by one level of government in a federal government.
Reason (R): In a Federal government, each government has its own constitutionally laid down jurisdiction.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

Explanation: In a Federal government, each government has its own constitutionally laid down jurisdiction. Each government takes care of certain subjects which have been specified by the constitution. Hence all decisions have to be taken only after discussions and consensus.

Question 44.
Assertion (A): Federations that are formed by ‘holding together’ do not give equal power to its constituent units.
Reason (R): States should be treated differently to help them develop.
Answer:
(c) (A) is correct but (R) is wrong.

Explanation: In the ‘holding together’ federations, a large country divided power between its constituent units carefully to ensure peace. Hence the distribution is unequal.

(Competency Based Questions (CBQs))

Question 1.
Read the source given below and answer the question that follows:
This sharing of power between the Union Government and the State governments is basic to the structure of the Constitution. It is not easy to make changes to this power-sharing arrangement. The Parliament cannot on its own to change this arrangement.
Any change to it has to be first passed by both the Houses of Parliament with at least a majority.
(a) Half
(b) Three-fourth
(c) Two-third
(d) One-fourth
Answer:
(c) Two-third

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 2.
Read the source given below and answer the question that follows:
A second test for Indian federation is the language policy. Our Constitution did not give the status of national language to any one language. Hindi was identified as the official language. But Hindi is the mother tongue of only about 40 percent of Indians. Therefore, there were many safeguards to protect other languages.
Which among the following is not a scheduled language of India?
(a) Santhali
(b) Sanskrit
(c) Angika
(d) Sindhi
Answer:

Question 3.
Read the source given below and answer the questions that follow:
This sharing of power between the Union Government and the State governments is basic to the structure of the Constitution. It is not easy to make changes to this power sharing arrangement. The Parliament cannot on its own change this arrangement. Any change to it has to be first passed by both the Houses of Parliament with at least two- thirds majority. Then it has to be ratified by the legislatures of at least half of the total States. The judiciary plays an important role in overseeing the implementation of constitutional provisions and procedures. In case of any dispute about the division of powers, the High Courts and the Supreme Court make a decision. The Union and State governments have the power to raise resources by levying taxes in order to carry on the government and the responsibilities assigned to each of them.
(A) Which of this can be considered a form of sharing of powers between the government?
(I) Division of Powers between Chief Minister and the Governor.
(II) Division of Powers between Central and State legislatures.
(III) Power sharing between Union and the States through lists of subjects.
(IV) Power division between Bureaucracy and Executive.
(a) (I) only
(b) (II) only
(c) (II) & (IV) only
(d) (II) & (III) only
Answer:

(B) Why was the Supreme Court given the power to resolve disputes between the states?
(a) The Supreme Court is an independent body and the best neutral judge to resolve disputes since it has no relations with working of any of the two legislatures.
(b) The Supreme Court is above the legislature.
(c) The Supreme Court has more experienced people.
(d) The Supreme Court is more representative of people’s will
Answer:
(a) The Supreme Court is an independent body and the best neutral judge to resolve disputes since it has no relations with working of any of the two legislatures.

(C) What is the prerequisite to amend the power sharing arrangement in Indian Constitution?
Answer:
A special majority (2/3rd members present and voting) in both the houses of the Parliament and ratification from the states.

(D) Assertion (A): The sharing of power between the Union Government and the State governments is basic to the structure of the Constitution.
Reason(R): Any single government can change this arrangement.
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(c) (A) is correct but (R) is wrong.
(d) (A) is wrong but (R) is correct.
Answer:
(c) (A) is correct but (R) is wrong.

Explanation: No single government can unilaterally change the power sharing arrangement. It needs ratification from the state governments and a special majority which is very tough to achieve.

The fact that our entire constitution is based on the Separation of Powers among the different organs of the government and administration makes it the very basic structure of the constitution.

Question 4.
Read the source given below and answer the questions that follow:
This new system of local government is the largest experiment in democracy conducted anywhere in the world. There are now about 36 lakh elected representatives in the panchayats and municipalities etc., all over the country. This number is bigger than the population of many countries in the world. Constitutional status for local government has helped to deepen democracy in our country. It has also increased women’s representation and voice in our democracy. At the same time, there are many diffculties.
Answer the following MCQs by choosing the most appropriate option:
(A) Which of the following is a difficulty that the local self governments face?
(a) States do not give them much power.
(b) Elections are held regularly.
(c) There is no one to contest elections.
(d) Villagers do not trust them.
Answer:
(a) States do not give them much power.
Explanation: While elections are held regularly and enthusiastically, Gram Sabhas are not held regularly. Most state governments have not transferred significant powers to the local governments. Nor have they given adequate resources. These are the basic difficulties Local self governments bodies.

(B) Which of the following has helped to deepen democracy in the country according to the source?
(a) Establishment of Local self governments.
(b) Provision of Constitutional status to Local Self-governments
(c) Establishment of Political parties
(d) Free and fair elections.
Answer:
(b) Provision of Constitutional status to Local Self governments.

(C) Match the following:

Column A (Bodies)

Column B (Details about Bodies)

(A) Gram Sabha (I) Gram Panchayats group together to form this unit.
(B) Gram Panchayat (II) It reviews the performance of the gram panchayat.
(C) Zila Parishad (III) decision-making body for the entire village.
(D) Mandals (IV) mandals in a district together constitute it.

(a) (A)-(II), (B).(III), (C)-(IV), (D)-(I)
(b) (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(c) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
(d) (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
Answer:

(D) Which of the following bodies is not a local self-government body.
(a) Zila Parishad
(b) Gram Sabha
(c) State Election Commission
(d) Nagar Panchayat
Answer:
(c) State Election Commission
Explanation: It facilitates elections in Local government bodies.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 5.
Read the source given below and answer the questions that follow:
Constitutional provisions are necessary for the success of federalism but these are not sufficient. If the federal experiment has succeeded in India, it is not merely because of the clearly laid out constitutional provisions.
The real success of federalism in India can be attributed to the nature of democratic politics in our country. This ensured that the spirit of federalism, respect for diversity and desire for living together became shared ideals in our country.
Let us look at some of the major ways in which this happened. The creation of linguistic States was the first and a major test for democratic politics in our country. If you look at the political map of India when it began its journey as a democracy in 1947 and that of 2019, you will be surprised by the extent of the changes. Answer the following MCQs by choosing the most appropriate option:
(A) Fill in the blank by choosing the most appropriate option:
The real success of federalism in India can be attributed to ……………………..
(a) the nature of democratic politics in our country.
(b) the rules laid down by the central government
(c) the rules laid down by state governments
(d) the execution of laws by Panchayats.
Answer:
(a) the nature of democratic politics in our country.
Explanation: Rules alone cannot help in making a country federal. Its implementation has to be checked and constantly monitored.

(B) Which of the following is not a test for democratic politics in our country?
(a) Creation of linguistic states
(b) Language policy
(c) Religion policy
(d) Policy of traffic rules and policing.
Answer:

(C) Which of the following is an objective of the federal system?
(a) To safeguard and promote unity of the country
(b) To accommodate new territories
(c) To filter people belonging to one caste or ethnic groups.
(d) To reject regional diversity
Answer:
(a) To safeguard and promote unity of the country
Explanation: A federal system has a most important objective which is to work for the unity and territorial integrity of the country and keep it safe.

(D) Complete the following sentence by choosing the most appropriate option: State government has powers of its own for which………………………
(a) It is answerable to Central Government
(b) It is not answerable to Central Government
(c) It is answerable to the people
(d) It is answerable to regional and local governments.
Answer:
(c) It is answerable to the people.
Explanation: A state government is not answerable or subordinate to any other government but the people.

Question 6.
Read the source given below and answer the questions that follow.
The exact balance of power between the central and the state government varies from one federation to another. This balance depends mainly on the historical context in which the federation was formed. There are two kinds of routes through which federations have been formed. The first route involves independent States coming together on their own to form a bigger unit, so that by pooling sovereignty and retaining identity they can increase their security.

Answer the following MCQs by choosing the most appropriate option:
(A) Identify the type of Federation as mentioned in the source.
(a) Holding Together Federation
(b) Coming Together Federation
(c) Running Together Federation
(d) Walking Together Federation
Answer:
(b) Coming together Federation

(B) Which of the following can be an example of the identified type?
(a) USA
(b) Russia
(c) India
(d) Belgium
Answer:
(a) USA

(C) Which of the following is not true about this type of federation.
(a) States share equal powers
(b) States cannot go out of the federation.
(c) Centre is stronger.
(d) States do not have absolute powers.
Answer:
(c) Centre is stronger.
Explanation: Centre tends to be strong in holding together federations. Here all states and centre share equal powers.

(D) Which of the following factors does not affect the balance of powers in a federation?
(a) Its history
(b) Its culture
(c) Its neighbours
(d) Its economy
Answer:
(c) Its neighbours.
Explanation: A federation is formed and its balance of power varies due to its historical, culturaL and economical situations. Its neighbours play no role.

Which of the following factors does not affect the balance of powers in a federation?

Very Short Answer Type Questions

Question 1.
Mention two aspects of an ideal federal system?
Answer:
Two aspects are:

  1. Mutual Trust
  2. Agreement between states and people to live together.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 2.
What is the system of Panchayati Raj?
Answer:

Question 3.
Why was the States reorganization commission formed?
Answer:
It was formed in 1954 to recommend the creation of states in India on the basis of different languages.

Question 4.
Which is the highest institution of Panchayati Raj in India?
Answer:
Zila Parishad

Question 5.
What is decentralisation? Why do we need it?
Answer:
Decentralisation grants more autonomy or freedom to lower levels of government and increases participation of the people.

Question 6.
In which list does the subject of Education come?
Answer:
Concurrent list

Question 7.
State any one step taken in Belgium to rule out the problem of regional differences and cultural diversities.
Answer:
The Constitution of Belgium established equality by maintaining equal number of French and Dutch speaking people in the central government so that a single dominant community does not make majoritarian decisions.

Question 8.
Who presides over the meeting of the Municipal Corporation?
Answer:

Question 9.
Who has the special powers in administering the Union Territories of India?
Answer:
Central Government

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 10.
What percentage of reservation is given to women in local administration in India?
Answer:
One third or 33% seats are reserved for women in local administration in India.

Question 11.
What do you mean by a Concurrent List? What subjects are included in this list?
Answer:
A concurrent list includes 66 subjects over which both the centre and the state possess equal powers. Both of them can make laws on these subjects and in case of a deadlock, the will of the centre prevails over that of the states, education, forest, trade unions, marriage, adoption and succession are examples of certain subjects included in this list.

Question 12.
Which institution has been created in each state of India to conduct panchayat and municipal elections?
Answer:

Question 13.
Arrange the following institutions of power according to the size of their jurisdiction in increasing order:
(i) Panchayat Samiti or Mandal
(ii) State Government
(iii) Gram Panchayat
(iv) Zila Parishad
Answer:
(iii)-(i)-(iv)-(ii)

Explanation:

  • Gram Panchayat heads a village or groups of villages.
  • Samitis head groups of gram panchayats.
  • Zila Parishad heads all panchayat samitis of a district.
  • State governments head zila parishads.

Question 14.
Who is a mayor?
Answer:
The head of municipal corporation is called mayor.

Explanation: The Mayor is the first citizen of the city and is elected by the members of the municipal corporation for the period of 5 years.

Question 15.
Define a Coalition Government.
Answer:
A coalition government is formed when none of the contesting parties get majority seats in the elections for Lok Sabha or Legislative Assemblies. In such a case, two or more parties form a government by coming together, making an alliance and adopting a common programme. NDA led by BJP under Prime Minister Narender Modi ruling presently in India is an example of a coalition government while the Congress led UPA under Manmohan Singh had been the ruling coalition government in the country for 10 years.

MCQ Questions for Class 10 Civics Chapter 2 Federalism with Answers

Question 16.
Which government has the power to legislate on ‘Residuary’ subjects in India?
Answer:
Union Government

Question 17.
Read the source given below and define what is jurisdiction?
Different tiers of government govern the same citizens, but each tier has its own JURISDICTION in specific matters of legislation, taxation and administration. The jurisdictions of the respective levels or tiers of government are specified in the constitution. So the existence and authority of each tier of government is constitutionally guaranteed.
Answer:
Jurisdiction is the area over which someone has legal authority. Jurisdiction can be defined by a geographical area or in terms of subjects.

MCQ Questions for Class 10 Social Science with Answers

The Tale of Custard the Dragon Class 10 MCQ Questions with Answers English Poem 10

The Tale of Custard the Dragon Class 10 MCQ Questions with Answers English Poem 10

Check the below Online Education NCERT MCQ Questions for Class 10 English First Flight Poem 10 The Tale of Custard the Dragon with Answers Pdf free download. MCQ Questions for Class 10 English with Answers were prepared based on the latest exam pattern. We have provided The Tale of Custard the Dragon Class 10 English MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-english-with-answers/

MCQ Questions for Class 10 English First Flight Poem 10 The Tale of Custard the Dragon with Answers

The Tale Of Custard The Dragon MCQ Question 1.
Who mourned over the death of the pirate?
(a) Blink
(b) Custard
(c) Ink
(d) None

Answer

Answer: (d) None


MCQ Of The Tale Of Custard The Dragon Question 2.
What did the dragon cry for?
(a) Because he was hurt.
(b) For a new mouse
(c) For a nice safe cage.
(d) None of the Above

Answer

Answer: (c) For a nice safe cage.


What did the dragon cry for?

Tale Of Custard The Dragon MCQ Question 3.
Who was called cowardly?
(a) Blink
(b) Custard
(c) Ink
(d) Rither

Answer

Answer: (b) Custard


The Tale Of Custard The Dragon Class 10 MCQ Question 4.
Who was Mustard?
(a) Belinda’s little yellow rat.
(b) Belinda’s little yellow mouse.
(c) Belinda’s little yellow dog.
(d) Belinda’s little grey dragon.

Answer

Answer: (c) Belinda’s little yellow dog.


The Tale Of Custard The Dragon MCQs Question 5.
Where did Belinda live?
(a) in a little white house
(b) in a little yellow house
(c) in a little grey house
(d) in a little pink house

Answer

Answer: (a) in a little white house


The Tale Of Custard The Dragon MCQ Questions Question 6.
What did Custard do to the pirate?
(a) ate him
(b) scared him away
(c) held him hostage
(d) None of these

Answer

Answer: (a) ate him


MCQ On The Tale Of Custard The Dragon Question 7.
Who did Belinda used to tease?
(a) kitten
(b) mouse
(c) dragon
(d) dog

Answer

Answer: (c) dragon


MCQ The Tale Of Custard The Dragon Question 8.
What all does the dragon possess?
(a) big sharp teeth
(b) spikes on top of him
(c) sharp toes
(d) All of the above

Answer

Answer: (d) All of the above


Question 9.
Who is described as the most timid of all?
(a) kitten
(b) mouse
(c) dragon
(d) dog

Answer

Answer: (c) dragon


Question 10.
What was the name of the black kitten?
(a) Custard
(b) ink
(c) blink
(d) mustard

Answer

Answer: (b) ink


What was the name of the black kitten?

We hope the given NCERT MCQ Questions for Class 10 English First Flight Poem 10 The Tale of Custard the Dragon with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 10 English Poem The Tale of Custard the Dragon MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Periodic Classification of Elements Class 10 MCQs Questions with Answers

Periodic Classification Of Elements Class 10 MCQ Question 1.
Which of the following statements) about the modern periodic table are incorrect?
(I) The elements in the modern periodic table are arranged on the basis of their decreasing atomic numbers.
(II) The elements in the modern periodic table are arranged on the basis of their increasing atomic masses.
(III) Isotopes are placed in adjoining group(s) in the periodic table.
(IV) The elements in the modern periodic table are arranged on the basis of their increasing atomic number.
(a) Only (I)
(b) (I), (II), and (III)
(c) (I), (II), and (IV)
(d) Only (IV)
Answer:
(b) (I), (II), and (III)

Explanation: The modern periodic table is a tabular arrangement of elements in increasing order of their atomic number, which is why isotopes are placed at the same position. Hence, only (III) is correct.

Periodic Table Class 10 Icse MCQ Question 2.
Which of the following statements about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns rows known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
Answer:

MCQ On Periodic Classification Of Elements Question 3.
An element X is forming the acidic oxide. Its most probable position in the modern periodic table is:
(a) Group 1 and Period 3
(b) Group 16 and Period 3
(c) Group 17 and Period 3
(d) Group 2 and Period 3
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Class 10 Science Chapter 5 MCQ Question 4.
Which of the given elements A, B, C, D and E with atomic numbers 2, 3, 7,10 and 30 respectively belong to the same period?
(a) A, B, C
(b) B, C, D
(c) A, D, E
(d) B, D, E
Answer:

MCQ On Periodic Classification Of Elements Class 10 Pdf With Answers Question 5.
On the basis of the electronic configuration of x|, the group number and period of the element ‘X is:
(a) Group 15 period 2
(b) Group 13 period 2
(c) Group 9 period 5
(d) Group 13 period 5
Answer:
(b) Group 13 period 2

Explanation: From X95, we can have the information as:
X — element
5 — Atomic number
9 — Mass number
The electronic configuration of X is 2, 3.

Group number is found out on the basis of valance electrons. Valence electrons are 3 so group number is 10 + 3 = 13.

The period can be found out by knowing the number of shells. Since the number of shells is 2 so it belongs to period 2.

Valence Electron Calculator – This free calculator provides you with free information about Valence Electron.

Periodic Classification Of Elements MCQ Question 6.
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively.
Which pair of elements belongs to the same group?
(a) A and B
(b) B and D
(c) A and C
(d) D and E
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

MCQ Of Periodic Classification Of Elements Question 7.
An element ‘X‘ with atomic number 11 forms a compound with element ‘V with atomic number 8. The formula of the compound formed is:
(a) XY
(b) X2Y
(c) XY2
(d) X2Y3
Answer:
(b) X2Y
Periodic Table MCQ Class 10
Element X can lose one electron and has a configuration like that of Neon.
X → X+ + e
Element Y can gain two electrons to acquire noble gas configuration like that of Neon:
Y + 2e → Y2
Or we can write
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 2

Periodic Table MCQ Questions And Answers Question 8.
The positions of four elements A, B, C, and D in the modern periodic table are shown below.
Periodic Table MCQ Questions And Answers
Which element is most likely to form an acidic oxide?
(a) A
(b) B
(c) C
(d) D
Answer:

Chapter 5 Science Class 10 MCQ Question 9.
In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the following element found a place in the periodic table later?
(a) Germanium
(b) Chlorine
(c) Oxygen
(d) Silicon
Answer:

Class 10 Science Ch 5 MCQ Question 10.
Elements P, Q, R, and S have atomic numbers 11,15,17 and 18 respectively. Which of them are reactive non-metals?
(a) P and Q
(b) P and R
(c) Q and R
(d) R and S
Answer:
(c) Q and R

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Chapter 5 Class 10 Science MCQ Question 11.
An element which is an essential constituent of all organic compounds belongs to:
(a) Group 1
(b) Group 14
(c) Group 15
(d) Group 16
Answer:

MCQs Of Periodic Classification Of Elements Question 12.
According to Mendeleev’s periodic law, the elements were arranged in the periodic table in the order of:
(a) Increasing atomic number
(b) Decreasing atomic number
(c) Increasing atomic masses
(d) Decreasing atomic masses
Answer:
(c) Increasing atomic masses

According to Mendeleev’s periodic law, the elements were arranged in the periodic table in the order of:

Explanation: Mendeleev’s periodic law is an arrangement of elements in increasing order of their atomic masses as Mendeleev’s periodic law states that, the physical and chemical properties of elements are a periodic function of their atomic masses.

Class 10 Chapter 5 Science MCQ Question 13.
Which of the following is the outermost shell for elements of period 2?
(a) K shell
(b) L shell
(c) M shell
(d) N shell
Answer:

MCQ Periodic Classification Of Elements Question 14.
Which of the following gives the correct increasing order of the atomic radii of O, F, and N?
(a) O, F, N
(b) N, F, O
(c) O, N, F
(d) F, O, N
Answer:

Periodic Table Class 10 MCQ Question 15.
Arrange the following elements in the order of their decreasing metallic character Na, Si, Cl, Mg, Al:
(a) Cl > Si > Al > Mg > Na
(b) Na > Mg > Al > Si > Cl
(c) Na > Al > Mg > Cl > Si
(d) Al > Na > Si > Ca > Mg
Answer:

Question 16.
Which among the following elements has the largest atomic radii?
(a) Na
(b) Mg
(c) K
(d) Ca
Answer:
(c) K

Explanation: Na and Mg belong to the same period, whereas Na and K are in the same group. In a group from top to bottom, the atomic radius increases, whereas it decreases in a period from left to right. Hence, the order would be K > Na > Mg and K > Ca > Mg.

Related Theory:
Atomic radius represents the distance from the nucleus to the outer shell of an element.
The trend of the atomic radius in the periodic table:

  1. decreases going from left to right of a period
  2. increases going down a group.

Question 17.
The electronic configurations of three elements X, Y and Z are:
X : 2 Y: 2, 8, 7 Z : 2, 8, 2
Which of the following is correct regarding these elements?
(a) X is a metal
(b) Y is a metal
(c) Z is a non-metal
(d) Y is a non-metal and Z is a metal
Answer:
(d) Y is a non-metal and Z is a metal.

Explanation: Element Y has 1 less electron to complete its octet which is a property of non-metals. On the other hand, element Z has 2 extra electrons to become stable which is a property of metals..

Question 18.
Which of the following elements would lose an electron easily?
(a) Mg
(b) Na
(c) K
(d) Ca
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 19.
Which of the following elements does not lose an electron easily?
(a) Na
(b) F
(c) Mg
(d) Al
Answer:
(b) F

Explanation: Flourine has 7 electrons in the outermost orbit. Its atom size is the smallest too. Since it is the most electronegative element, it does not lose an electron easily. Sodium has one valence electron, magnesium has 2 valence electrons, and aluminium has 3 valence electrons. All these metals lose electrons easily.

Related Theory
Metals can easily lose electrons and exhibit electropositive nature, whereas non-metals have a tendency to accept electrons and exhibit electronegative nature. Na, Al, and Mg are metals, whereas F is non-metal.

Question 20.
What type of oxide would Eka-aluminium form?
(a) EO3
(b) E3O2
(c) E2O3
(d) EO
Answer:

Question 21.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
(a) Metal
(b) Metalloid
(c) Non-metal
(d) Left-hand side element
Answer:
(b) Metalloid

Explanation: Atomic number 14 (electronic configuration of 2,8,4) is for silicon element, which is a metalloid and exhibits properties of both metal and non-metal. It has 4 electrons in its valence shell, so it tends to form covalent acidic oxide.

Question 22.
Which one of the following depicts the correct representation of atomic radius (r) of an atom?
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 4
(a) (I) and (II)
(b) (II) and (III)
(c) (III) and (IV)
(d) (I) and (IV)
Answer:
(b) (II) and (III)

Explanation: The distance between the center of the nucleus and the outermost shell is known as atomic radius.

Question 23.
Which one of the following does not increase while moving down the group of the periodic table?
(a) Atomic radius
(b) Metallic character
(c) Valence
(d) Number of shells in an element
Answer:

Question 24.
On moving from left to right in a period in the periodic table, the size of the atom:
(a) increases
(b) decreases
(c) does not change appreciably
(d) first decreases and then increases
Answer:
(b) decreases

Explanation: As we move from left to right in the period of periodic table, the number of shell remains same but atomic number increases. So, the increase in nuclear charge which tends to pull electrons closer to the nuclers and reduces the size of the atoms.

Related Theory
The size of atom of an inert gas is bigger than that of the preceding halogen atom. The greater size of the inert gas atom in a period is due to the structural stability of its outermost shell consisting of an octet of electrons.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 25.
Which of the following set of elements is written in order of their increasing metallic character?
(a) Be, Mg, Ca
(b) Na, Li, K
(c) Mg, Al, Si
(d) C, O, N
Answer:
(a) Be, Mg, Ca.

Explanation: As we move down in a group, the metallic nature of elements increases. Be, Mg, and Ca are present in the same group (group 2 of the modern periodic table). Thus, Ca has the highest metallic character.

Question 26.
An element X makes an oxide with the formula X2O3. This element will be in the same group as:
(a) Na
(b) Mg
(c) Al
(d) Cl [Diksha]
Answer:
(c) Al

Explanation: The answer is Al (aluminium). The element Al is in group II! of Mendeleev’s periodic table, in which the general formula of the oxides of elements is X2O3.

Question 27.
The two pairs of elements placed by Newlands in one slot are:
(a) Co, Ni and Ce, La
(b) Be, Mg and Co, Ni
(c) F, Cl, and Ce, La
(d) Zn, Sr, and Be, Mg
Answer:

Question 28.
The order of metallic character of some elements is: N < P < As < Sb < Bi. Identify the most electronegative among these elements,
(a) N
(b) P
(c) Sb
(d) Bi
Answer:
(a) N

Explanation: The less metallic an element, the more electro-negative it will be. Since electronegativity is the ability of an atom to gain electrons, whereas metallic character is related to the ability of atoms to lose electrons. As N is the least metallic of the given elements, it will be the most electronegative.

Question 29.
Four elements P, Q, R and S have number of valence electrons 2,3,5 and 7 respectively. A student noted down the Group number in Modern Periodic Table and their valency as:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 5
Select the row containing the correct group number and valency.
Answer:

Question 30.
Consider the elements Li, Be, B, C, N, O and F.
(I) The most electropositive element is F.
(II) The most electronegative element is F.
(III) The only metalloid is B.
(IV) The smallest atomic size is Li.
Read the statements given above and select the incorrect statements:
(a) Both (I) and (III)
(b) Both (I) and (IV)
(c) Both (II) and (III)
(d) Both (II) and (IV)
Answer:
(b) Both (I) and (IV)

Explanation: Let us arrange the given elements according to their atomic number:
Li < Be < B < C < N < 0 < F.

All the above elements have two occupied shells and are therefore placed in the second group of the periodic table.

The most electropositive element is Li and the most electronegative element is F. This is because the tendency to lose electrons decreases as we go from left to right along a period. Also, as we go from left to right along a period, the atomic radius and hence the atomic size decreases because of the increase in effective nuclear charge experienced by the valence electrons. The only metalloid is B.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 31.
Out of the elements F, Cl, Br and I, which is the most electronegative element?
(a) F
(b) Cl
(c) Br
(d) I
Answer:
(a) F

Explanation: The electronegativity decreases as we move down a group because the ability to gain electrons decreases down a group. This is because of the decrease in the effective nuclear charge experienced by the valence electrons since a new shell is added in each group.

Since F, Cl, Br and I have 2, 3, 4 and 5 shells respectively, F is the most electronegative of these elements.

Assertion Reasoning questions Class 10 Science Chapter 5

For the following questions, two statements are given-one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both (A) and (R) are true and (R) is the correct explanation of the assertion.
(b) Both (A) and (R) are true but (R) is not the correct explanation of the assertion.
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.

Question 32.
Assertion (A): Potassium has a bigger atomic radius than lithium.
Reason (R): Atomic radius decreases along a period.
Answer:

Question 33.
Assertion (A): Chemical properties of the elements belonging to the same group are the same.
Reason (R): Elements belonging to the same group possess the same number of valence electrons.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of A.

Question 34.
Assertion (A): Nitrogen is a non-metal.
Reason (R): Nitrogen has 5 valence electrons.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A)

Explanation: Non-metals are the elements that form negative ions by gaining electrons.

Electronic configuration of N = 2 5
k = 2
L = 5
It needs 3 electrons to complete its octet and achieve the same configuration as that of the inert gas neon.
N + 3e→ N3-

Question 35.
Assertion (A): Newland’s law of Octaves worked well with lighter elements only.
Reason (R): Newland assumed that only 56 elements existed in nature.
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 36.
Assertion (A): A correct position could not be assigned to hydrogen in Mendeleev’s periodic table.
Reason (R): Mendeleev Periodic Law states that ‘the properties of elements are the periodic function of their atomic numbers.
Answer:
(c) (A) is true but (R) is false

Explanation: A correct position could not be assigned to hydrogen in the periodic table. The electronic configuration of hydrogen resembles that of alkali metals. Like alkali metals, hydrogen combines with halogens, oxygen and sulfur to form compounds having similar formulae.

On the other hand, just like halogens, hydrogen also exists as diatomic molecules and it combines with metals and non-metals to form covalent compounds.

Moreover, Mendeleev’s Periodic Law states that ‘the properties of elements are the periodic function of their atomic masses’.

Question 37.
Assertion (A): The elements Sodium (Na), Magnesium (Mg), Aluminium (Al) belong to the same group in Modern Periodic Table.
Reason (R): Atoms of different elements with the same number of occupied shells are placed in the same period.
Answer:

Question 38.
Assertion (A): Calcium (Atomic No. 20) is more metallic than Potassium (Atomic No. 19).
Reason (R): The tendency to lose electrons decreases as we move from left to right in a period.
Answer:
(c) (A) is false but (R) is true.

Explanation: Potassium (Atomic No. 19) is more metallic than Calcium (Atomic No. 20) as the tendency to lose electrons decreases as we move from left to right in a period.

The electronic configuration of Potassium is 2, 8, 8, 1 and that of Calcium is 2, 8, 8, 2. Therefore, the effective nuclear charge acting on the valence electrons of Calcium will be more than that of Potassium.

(Competency Based Questions (CBQs))

Question 1.
Sulphur is a multivalent non-metal, abundant, tasteless and and odorless. In its native form sulphur is a yellow crystalline solid. In nature it occurs as the pure element or as sulphide and sulphate minerals.Sulphur dioxide or sulphur dioxide is the chemical compound with the
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 6
formula SO2. It is a toxic gas responsible for the smell of burnt matches. It is released naturally by volcanic activity and is produced as a by product of copper extraction and the burning of fossil fuels contaminated with sulphur compounds.
Identify the group and period of the Modern Periodic Table to which Sulphur belongs. Write any two properties exhibited by sulphur.
Answer:
The atomic number of sulphur is 16. It’s electronic configuration is (2, 8, 6). It belongs to group 16 and period 3 of the Modern Periodic Table.

Two properties exhibited by sulphur are allotropy and catenation.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 2.
Around the year 1800, only 30 elements were known. Dobereiner in 1817 and Newlands in 1866 tried to arrange the then known elements and framed laws which were rejected by the scientists. Even after the rejection of the proposed laws, many scientists continued to search for a pattern that correlated the properties of elements with their atomic masses.

The main credit for classifying elements goes to Mendeleev for his most important contribution to the early development of a Periodic table of elements wherein he arranged the elements on the basis of their fundamental property, the atomic mass and also on the similarity of chemical properties. The formulae of their hydrides and oxides were treated as basic criteria for the classification of the elements. However, Mendeleev’s classification also had some limitations as it could not assign the position to isotopes. He also left some gaps in the periodic table.
(A) State Mendeleev’s Periodic Law.
Answer:
Mendeleev’s Periodic Law: It states that the properties of elements are the periodic function of their atomic masses.

Related Theory
Mendeleev concluded that when elements are arranged in order of increasing atomic masses, similar properties of element repented after a definite gap of atomic masses. This repetition of similar properties after a definite gap of atomic masses is also called periodicity in properties.

(B) Why did Mendeleev leave some gaps in the Periodic table?
Answer:

(C) If the letter ‘R‘ was used to represent any of the elements in the group, then the hydride and oxide of carbon would respectively be represented as:
(a) RH4, RO
(b) RH4, RO2
(c) RH2, RO2
(d) RH2, RO
Answer:

(D) Isotopes are:
(a) Atoms of an element with similar chemical properties but different atomic masses.
(b) Atoms of different elements with similar chemical properties but different atomic masses.
(c) Atoms of an element with different chemical properties but same atomic masses.
(d) Atoms of different elements with different chemical properties but same atomic masses.
Answer:
(a) Atoms of an element with similar chemical properties but different atomic masses.

Explanation: Isotopes are the atoms of some element which have same atomic number but different mass number. They have same atomic number, same number of protons, same number of electrons and, same number of valence electrons. Valence electrons are responsible for the chemical properties of an element. Since isotopes of an element have same number of valence electrons. So they will have similar chemical properties.

Related Theory
Isotopes of chlorine are Cl-35 and Cl-37:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 7
Hence, isotopes of chlorine Cl-35 and Cl-37 will have similar chemical properties.

Question 3.
Recently, two persons died in a major ammonia gas leakage at the Indian Farmers Fertilizer Cooperative Limited (IFFCO) unit at Prayagraj. The experts point out that ammonia is stored for industrial use in liquid form under high pressure or in gaseous form at low temperature, as was the case in the IFFCO unit where the accident took place. Ammonia is critical in the manufacturing of fertilizers, and is one of the largest-volume synthetic chemicals produced in the world.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 8
What type of bond is present ammonia molecule? Wilt a solution of ammonia be a good conductor or poor conductor of electricity?
Answer:
Ammonia molecule NH3 is formed by the sharing of electrons between nitrogen and hydrogen atoms as shown below:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 9
As electron pairs are shared between the three hydrogen atoms and the nitrogen atom, a solution of ammonia in water will be a poor conductor of electricity as there are no charged particles present in an ammonia molecule.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 4.
The following table shows a part of the periodic table in which the elements are arranged according to their atomic numbers. (The letters given here are not the chemical symbols of the elements):
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 10
(A) Which element has a bigger atom, a or f?
Answer:
a (size decreases from left to right in a period).

(B) Which element has a higher valency, k or o?
Answer:

(C) Which element is more metallic, i or k?
Answer:
i (metallic character decreases from left to right in a period).

Explanation:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 11
it has to lose only one electron to acquire metallic character whereas k has to lose 3 electrons which requires a lot of energy as compared to element so element i is more metallic.

(D) Select a letter which represents a non-metal of valency 2.
Answer:

Question 5.
When Sam was walking along the street, he saw several beautiful and colourful signages. In the signage industry, neon signs are electric signs lighted by long luminous gas-discharge tubes that contain rarefied neon or other gases. They are the most common use for neon lighting, which was first demonstrated in a modern form in December 1910 by Georges Claude at the Paris Motor Show.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 12
Where would you locate the element with electronic configuration 2, 8 in the modern periodic table?
(a) Group 8
(b) Group 2
(c) Group 18
(d) Group 10
Answer:
(c) Group 18
Explanation: The element with electronic configuration 2, 8 has an octet configuration, so it must be an inert gas, i.e., neon, which is placed in group 18.

Related Theory
Group 18 in the modern periodic table has noble gases (inert gases). Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are present in group 18. The members of the group have eight electrons in their outermost orbit (except helium which has two electrons). Thus, they have a stable electronic configuration. These gases are chemically un-reactive, i.e., they don’t react with other elements to form compounds.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 6.
Atoms of eight elements A, B, C, D, E, F, G and H have the same number of electron shells but different number of electrons in their outermost shells. It was found that elements A and G combine to form an ionic compound. This ionic compound is added in a small amount to almost all vegetables and dishes during cooking. Oxides of elements A and B are basic in nature while those of elements E and F are acidic. The oxide of element D is, however, almost neutral.
Based on the above information, answer the following questions:
(A) To which group or period of the periodic table do these elements belong?
Answer:

(B) What would be the nature of compound formed by a combination of elements B and F?
Answer:
The compound between B and F will be ionic in nature.

(C) Which two of these elements could definitely be metals and which would be non metals?
Answer:

(D) Which one of the eight elements is most likely to be found in gaseous state at room temperature?
Answer:
Element H will be found in gaseous state at room temperature as it is the 8th element of the group so it would have 8 electrons in its outermost shell which is the electronic configuration of a nobel gas.

Related Theory:
Sodium chloride is used in almost all vegetables and dishes during cooking. It means A is sodium and G is chlorine.
Metals are one present on the left hand side of modern periodic table and non-metals on the right hand side. As we know oxides of metals are basic in nature and oxides of non-metals form acidic oxide. The elements given one.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 13

Question 7.
Analyse the following table given below and answer the questions that follow:
Given alongside is a part of the periodic table. As we move vertically downward from Li to Fr:

Li Be
Na
K
Rb
Cs
Fr Ra

(A) Which among the following has larger size of atoms?
(a) Li
(b) Na
(c) Cs
(d) Fr
Answer:
(d) Fr

Explanation: Fr has greater atomic size as the atomic size increases gradually from lithium to francium.

(B) Which one of the following does not increase while moving down in group of the periodic table?
(a) Atomic radius
(b) Metallic character
(c) Valence
(d) Number of shells in an element
Answer:

(C) Name two properties of elements whose magnitude change while going from top to bottom in a group of the periodic table. In what manner do they change?
Answer:

(D) Rewrite the following statement after correction, if necessary:
“Groups have elements with consecutive atomic numbers”
Answer:
Periods have elements with consecutive atomic numbers.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 8.
In addition to its applications in electronic devices, germanium is used as a component of alloys and in phosphors for fluorescent lamps. Because germanium is transparent to infrared radiation, it is employed in equipment used for detecting and measuring such radiation, such as windows and lenses. Silicon is used in building and construction, able to bond materials such as concrete, glass, granite, steel and plastics, enabling them to work better and last longer. Solar cells made out of silicon currently provide a combination of high effciency, low cost, and long lifetime.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 14
Three elements B, Si and Ge are:
(a) Metals
(b) Non-metals
(c) Metalloids
(d) Metal, non-metal and metalloid respectively
Answer:
(c) Metalloids

Explanation: The elements boron (B), silicon (Si) and germanium (Ge) exhibit intermediate properties of metals and non-metals, therefore, they are called as metalloids. These elements are placed in between metals and non-metals diagonally as a zigzag line to separate them.

Related Theory
A few other elements are arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At).

Question 9.
Analyse the following table given below and answer the questions that follow:
The atomic radii of the element of the second period are given below:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 15
(A) Arrange these elements in decreasing order of their atomic radii.
Answer:
Elements in decreasing order of their atomic radii
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 16

(B) Why does atomic radius decreases as we move from left to right in a period?
Answer:

(C) Which is not true about the noble gases?
(a) They are non-metallic in nature
(b) They exist in atomic form
(c) They are radioactive in nature
(d) Xenon is the most reactive among these
Answer:
(c) They are radioactive in nature.
Explanation: Noble gases are inert and are not radioactive in nature.

Related Theory
Noble gases cannot lose or gain or shore electrons as their outermost shell is complete.
He has 2 electrons in its K shell, which is completely filled as K shell can accommodate maximum of 2 electrons whereas Ne has 8 electrons in its L shell and its octet is complete so they exist in atomic form.

(D) Which of the following is the outermost shell for elements of period 2?
(a) K shell
(b) L shell
(c) M shell
(d) N shell
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 10.
A student tried to assign a correct position to hydrogen in Mendeleev’s Periodic Table by looking at its resemblance to alkali metals and the halogen family.
Another student wondered where she would place the isotopes of chlorine, Cl-35 and Cl-37 as they were atoms of the same element.

(A) No fixed position could be given to hydrogen in the Mendeleev’s Periodic Table as:
(I) Electronic configuration of hydrogen resembles that of alkali metals.
(II) Hydrogen combines with metals and non-metals to form ionic compounds.
(III) Hydrogen exists as diatomic molecules just like alkali metals.
(IV) Hydrogen combines with halogens, oxygen and sulphur to form compounds having similar formulae as alkali metals.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (III) and (IV)
Answer:
(c) Both (I) and (IV)

Explanation: As Mendeleev’s periodic table was based on atomic mass, no fixed position could be assigned to hydrogen. However, it has one valence electron just like alkali metals Li, Na, K etc. Moreover, hydrogen combines with haLogens, oxygen and sulphur just like alkali metals do. However, hydrogen combines with metals and non-metals to form covalent bonds by sharing of electrons and exists as diatomic molecules like halogens.

(B) The formula of hydrides of elements belonging to a Group of Mendeelev’s Periodic Table is RH2. The Group Number to which the element belongs is:
(a) Group IV
(b) Group V
(c) Group VI
(d) Group VII

(C) The formula of oxides and hydrides of elements belonging to different Groups of the Mendeleev’s Periodic Table is given below:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 17
The letter ‘R’ is used to represent any of the elements in the group.
Select the row containing incorrect information.
Answer:
(a) Croup No.: 1, Formula of oxides; RO, Formula of Hydrides; RH Explanation: The formula of hydrides and oxides of elements belonging to group I of Mendeleev’s table is R2O and RH respectively. For example, formula of oxide and hydride of element Li will be Li2O and LiH respectively.

(D) Select the correct statement regarding position of isotopes in Mendeleev’s Periodic Table:
(a) Mendeleev left some gaps in his periodic table for the isotopes.
(b) Isotopes were discovered after Mendeleev had proposed his periodic classification of elements.
(c) Mendeleev placed both the isotopes of chlorine (Cl-35 and Cl-37) under the same slot as they had same chemical properties.
(d) Mendeleev placed both the isotopes of chlorine (Cl-35 and Cl-37) in different slots as they had different masses.

(E) Mendeleev left some gaps in his Periodic Table as he predicted the existence of some elements that had not been discovered at that time. Which of the following elements discovered later, have properties similar to Eka-boron?
(a) Gallium
(b) Germanium
(c) Caesium
(d) Scandium
Answer:

Question 11.
We all have heard about the damage being done to the Taj Mahal and our environment due to high levels of oxides of certain elements in the atmosphere. Acid rain is caused by a chemical reaction that begins when these oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 18
Which of the following elements will form an acidic oxide?
(a) An element with atomic number 7
(b) An element with atomic number 3
(c) An element with atomic number 12
(d) An element with atomic number 19
Answer:
(a) An element with atomic number 7

Explanation: Non-metals form acidic oxides. The element with atomic number 7 is a non-metal (nitrogen). Rest three elements with atomic numbers, 3 (Li), 12 (Mg) andl9 (K) are metals and hence, form basic oxides.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 12.
Atomic radii of the elements of the second period are given below:
Period II elements: B Be O N Li C
Atomic radius (pm): 88 111 66 74 152 77
Atomic radii of first group elements are given below and arrange them in an increasing order.
Group 1 Elements 6: Na Li Rb Cs K
Atomic Radius (pm): 186 152 244 262 231
(A) Select the incorrect statements:
(I) The atomic radius decreases in moving from left to right along a period.
(II) The atomic radius increases in moving from left to right along a period
(III) As we move from left to right along a period, there is an increase in nuclear charge which tends to pull the electrons closer to the nucleus.
(IV) As we move from left to right along a period, there is a decrease in nuclear charge which tends to pull the electrons away from the nucleus.
(a) Both (I) and (III)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (II) and (IV)
Answer:
(d) Both (II) and (IV)

Explanation: As we move from left to right along a period we see that the atomic radius decreases. This is due to an increase in nuclear charge which tends to pull the electrons closer to the nucleus and reduces the size of the atom.

(B) Two students recorded their observations on variation of atomic radii of first group elements as given below:

First Student

Second Student

(a) Li has the smallest atomic radii Na has the smallest atomic radii
(b) Atomic radius of Rb > Cs Atomic radius of Cs > Rb
(c) Cs has the biggest atomic radius Li has the smallest atomic radius
(d) Atomic radius of K > Na The atomic radius of Na > K

Select the row containing the correct observation by both students.
Answer:
(c) First student: Cs has the biggest atomic radius, Second student: Li has the smallest atomic radius.

Explanation: The atomic radius and hence the atomic size increases as we move down a group. This is because a new shell is added as we move down the group. This increases the distance between the nucleus and the valence shell.

As Cs lies at the bottom of group 1, and Li lies at the top, Cs has the biggest atomic radius among Group 1 elements.

(C) The atomic size of Na is greater than Li because:
(a) Na has three shells, whereas Li has two shells in its atom
(b) The atomic number of Na is greater than Li
(c) As we go down a group, distance between outermost electrons and nucleus decreases.
(d) The mass of Na atom is greater than Li atom
Answer:

(D) The graph of variation of atomic radius with atomic number for alkali metals and halogens is shown below:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 19
Select the correct observation:
(a) Na has a bigger atomic radius than Li due to decrease in nuclear charge
(b) F has a smaller atomic radius than Li due to increase in nuclear charge
(c) Na and Cl belong to the third period of Modern Periodic Table and have identical electronic configuration.
(d) Elements of Group 17 have the biggest atomic size in their respective periods.
Answer:
(b) F has a smaller atomic radius than Li due to increase in nuclear charge

Explanation: Both F and Li lie in the second period as they have two occupied shells. However, as the effective nuclear charge is more in the case of F as compared to Li, F has a smaller atomic radius than Li.

The atomic radius decreases in moving from left to right along a period and it increases in going from top to bottom along a group.

(E) The correct increasing order of the atomic radii of the elements Mg, Si and Cl is:
(a) Mg > Si > Cl
(b) Si < Cl < Mg
(c) Cl < Si < Mg
(d) Cl < Mg < Si
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 13.
Chemists have always looked for ways of arranging the elements to reflect the similarities between their properties. The earliest attempt to classify the elements was in 1789, when Antoine Lavoisier grouped the elements based on their properties into gases, non-metals, metals and earths. Several other attempts were made to group elements together over the coming decades. In 1829, Johann Dobereiner recognised triads of elements with chemically similar properties, such as lithium, sodium and potassium, and showed that the properties of the middle element could be predicted from the properties of the other two. It was not until a more accurate list of the atomic mass of the elements became available at a conference in Karlsruhe, Germany in 1860 that real progress was made towards the discovery of the modern periodic table.
(A) Which of the following elements form Dobereiner’s triads?
(a) Li, Na, K
(b) Ca, Sr, Ba
(c) F, Cl, Br
(d) Cl, Br, I
Answer:

(B) Given below are four statements on Dobereiner’s triads:
(I) One triad identified by Dobereiner was (Ca, Na, Ba)
(II) The triads identified by Dobereiner had three elements each.
(III) The atomic mass of the middle element was roughly equal to the atomic masses of the other two elements.
(IV) Dobereiner could identify only three triads from the elements known at that time.
Identify the incorrect statements.
(a) Both (I) and (III)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (II) and (IV)
Answer:
(a) Both (I) and (III)

Explanation: Dobereiner’s triods consisted of three elements having simiLar properties. He coutd identifij onLy three triads out of the elements discovered at that time. They were (Li, Na, K), (Ca. Sr. Ba) and (Cl, Br, I). The atomic mass of the middle element was roughly equal to the average of the atomic masses of the other two elements.

(C) A & B are two elements having similar properties which obey the law of octaves. How many elements are there in between A and B?
(a) 5
(b) 6
(c) 7
(d) 8

(D) Which of the following is not a limitation of Newland’s law of octaves:
(a) The elements fluorine, chlorine and bromine are placed in the same column (musical note).
(b) Newlands’ Law of Octaves worked well with lighter elements only.
(c) Newlands assumed that only 56 elements existed in nature and no more elements would be discovered in the future.
(d) In order to fit elements into his Table, Newlands adjusted cobalt and nickel in the same slot.
Answer:
(a) The elements fluorine, chlorine and bromine are placed in the same column (musical note).

Explanation: The elements fluorine, chlorine and bromine are placed in the some column (musicol note) as they have similar properties and are known as halogens. Even in the modern periodic table, they are placed in the same group, group 17.

(E)Given below are few observations on properties of eLements.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 20
Select the option containing the correct observation.
Answer:
(d) Observation: Properties of Li and Na were found to be similar, Doberimer’s Triods: Yes, NewLands’ Law Yes.

Explanation: Both Be and Mg were placed under the same note in Newland’s law, but were not part of Döbereiner’s triads. Dobereiners Triads

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 14.
Valency of an element is the combining capacity of an atom of the element. The volency of an element is related to how many electrons are in the outer shell. The chemical formula for a substance shows how many atoms of each element are present in a molecule, or the proportion of atoms of each element. The formula can be worked out using the volency.

The molecular formula of a compound can be predicted knowing the valency of the constituting atoms. Knowledge of valency is useful in calculating equivalent weight of elements, writing down chemical equations and in checking the structures of molecules. Some elements show variable valency and the valency determines the properties of elements. The table below gives atomic number of five elements written as P, Q, R, S and T, which are not their real chemical symbols.

Element Atomic Number
P 4
Q 9
R 14
S 18
T 20

(A) The valency and group number in Modern Periodic Table of four elements are given below:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 21
Select the option containing the correct valency and group number.
Answer:

(B) The electronic configuration of the element T is:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 22
(C) The valency of elements:
(a) Decreases as we go down a group
(b) Remons same in a group
(c) Increases as we go down a group
(d) First increases and then decreases as we go down a group
Answer:
(b) Remains same in a group

The valency of elements:

Explanation: The valency of elements is equal to the number of valence electrons in case of metals and (8 – valence electrons) for non-metals. Moreover, all elements belonging to the same group have same outer shell electronic configuration. Therefore, valency of elements remains same in a group.

(D) As per the table given above, the element(s) which wilL form only covaLent bonds ¡s:
(I) P
(II) R
(III) S
(IV) Q
(a) Only (I)
(b) Only (II)
(c) Both (I) and (IV)
(d) Both (II) and (III)
Answer:

(E) Select the incorrect statement:
(a) Valency of elements of second period is 2.
(b) Valency of an element is determined by the number of valence electrons present in the outermost shell of its atom.
(c) Valency of metals is equal to the number of valence electrons.
(d) Valency of elements of Group 18 of Modern Periodic Table is 0.
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 15.
The elements can be classified as metals, nonmetals, or metalloids. In the Modern Periodic Table, a zig-zag line separates metals from non-metals.
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 23
The metals are to the Left of the line (except for hydrogen, which is a nonmetaL), the nonmetals are to the right of the Line, and the elements immediately adjacent to the line are the metalioids.
Ionization energy is the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule. It is expressed as
X(g) + energy → X+(g) + e

where X is any atom or molecule, X+ is the ion with one electron removed, and e- is the removed electron.
Since the metals are further to the left on the periodic table, they have low ionization energies.
(A) Which of the following elements is not a metalloid?
(a) Si
(b) Ge
(c) As
(d) Ar
Answer:
(d)Ar

Explanation: The metalloids are B, Si. Ge, As, Te and Po. Ar (Argon) is a noble gas having atomic number 18.

(B) An element A (atomic number 17) reacts with an element B (atomic number 14) to form a tetravalent halide.
Select the option which gives the correct nature of elements A and B:

Element A Element B
(a) Metal Non-metal
(b) Non-metal Non-metal
(c) Non-metal Metalloid
(d) Metalloid Metalloid

Answer:

(C) Four statements are given below.
(I) The metalloids are placed in Groups 13 – 16 in the Modern Periodic Table
(II) Boron is the only metalloid in group 13 of the Modern Periodic Table.
(III) Group 14 of the Modern Periodic Table contains only metalloids.
(IV) Group 17 of the Modern Periodic Table contains both metalloids and non-metals
Select the correct statement(s):
(a) Both (I) and (II)
(b) Both (I) and (III)
(c) Both (II) and (IV)
(d) (I), (II) and (IV)
Answer:

(D) Variation of the ionization energy of elements with atomic number upto atomic number 20 is given below:
From the graph we can conclude that the tendency to lose electrons:
(a) Increases as we go down the group
(b) Decreases as we go down the group
(c) Remains constant in a group
(d) No definite conclusion can be made
Answer:

(E) The metalloid which is the second most abundant element on earth’s crust after oxygen and is widely used in electronics is:
(a) B (b) Ge
(c) Si (d) As
Answer:

Very Short Answer Type Questions

Question 1.
State the common characteristic of the following elements: Boron, Silicon, Germanium and Arsenic
Answer:

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 2.
State the Periodic Law on which the Modern Periodic Table is based.
Answer:
Periodic Law on which the Modern Periodic Table is based is termed as Modern Periodic Law. According to Modern Periodic Law – The properties of elements are a periodic function of their atomic numbers.

Related Theory
Modern Periodic Table or Long form of Periodic table was prepared by Henry Moseley and is based on electronic configuration of elements. The elements are arranged in increasing order of their atomic numbers. Modern Periodic Table consists of 18 vertical columns called 7 horizontal rows called periods.

Question 3.
How many metals are present in second period of periodic table?
Answer:

Question 4.
The atomic radii of three elements A, B and C of a periodic table are 186 pm, 104 pm and 143 pm respectively. Giving a reason, arrange these elements in the increasing order of atomic numbers in the period.
Answer:
Since atomic size decreases along a period and the atomic number increases. So, the element with smaller radii, has the highest atomic number.

Hence, B has the highest atomic number followed by C and A i.e. A < C < B

Explanation: The atomic size is the distance between the centre of the nucleus and the outermost shell of an isolated atom. The atomic radius is measured in picometre, (1 pm = 10-12 m).

The atomic radius decreases in moving from left to right along a period. This is due to:
As the atomic number increases, the nuclear charge increases. Increase in nuclear charge tends to pull the electrons closer to the nucleur and reduce the size of the atom.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 5.
Consider the following :
20Ca, 8O,16S, 4Be
Which of the above elements would you expect to. be in group 2 of the Modern Periodic table?
Answer:
Consider the electronic configuration of elements:
Ca: 2, 8, 8, 2 O: 2, 6 S: 2, 8, 6 Be: 2, 2
As Ca and Be all have the same number of valence electrons (2), they belong to group 2 of the Modern Periodic Table.

Question 6.
Define electropositivity.
Answer:
Electropositivity is the ability metals to lose electron to form positive ions.
Explanation: Metals have 1, 2, 3 valence electrons and have a strong tendency to lose these to form positive ions, so metal are called electropositive elements.
For example:
MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers 24
as we move down in a group in the periodic table, atomic size increases. As a result, force of attraction between the nucleus and valence electrons decreases.

Question 7.
Write two reasons responsible for the late discovery of noble gases
Answer:
The two reasons for the late discovery of noble gases are:

  1. Their low concentration in the atmosphere.
  2. Their chemical inertness or very less reactivity.

MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers

Question 8.
What were the criteria used by Mendeleev in creating has periodic table
Answer:
The criteria used by Mendeleev in creating his periodic table were the relationship between the atomic masses of the elements and their physical and chemical properties and formulae of the hydrides and oxides formed by an element.

MCQ Questions for Class 10 Science with Answers

How to Tell Wild Animals Class 10 MCQ Questions with Answers English Poem 4

How to Tell Wild Animals Class 10 MCQ Questions with Answers English Poem 4

Check the below NCERT MCQ Questions for Class 10 English First Flight Poem 4 How to Tell Wild Animals with Answers Pdf free download. MCQ Questions for Class 10 English with Answers were prepared based on the latest exam pattern. We have provided How to Tell Wild Animals Class 10 English MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-10-english-with-answers/

MCQ Questions for Class 10 English First Flight Poem 4 How to Tell Wild Animals with Answers

How To Tell Wild Animals MCQ Question 1.
What two things does a Chameleon not have?
(a) does not have ears and nose.
(b) does not have ears and wings.
(c) does not have nose and wings.
(d) none of the above.

Answer

Answer: (b) does not have ears and wings.


What two things does a Chameleon not have?

How To Tell Wild Animals Class 10 MCQ Question 2.
What is the special feature of the crocodile?
(a) weeps while eating its prey.
(b) happy while eating its prey.
(c) angry while eating its prey
(d) none of the above.

Answer

Answer: (a) weeps while eating its prey.


MCQ Of How To Tell Wild Animals Question 3.
Which animal can we meet in our yard?
(a) Lion
(b) Pig
(c) Deer
(d) Bear

Answer

Answer: (d) Bear


How To Tell Wild Animals MCQs Question 4.
How is the Bengal Tiger described?
(a) noble dinosaur.
(b) noble wild beast.
(c) noble dragon.
(d) none of the above.

Answer

Answer: (b) noble wild beast.


Class 10 English How To Tell Wild Animals MCQ Question 5.
Where are the Asian Lions found?
(a) Eastern countries of the world
(b) Northern countries of the world
(c) Southern countries of the world
(d) Western countries of the world

Answer

Answer: (a) Eastern countries of the world


MCQ How To Tell Wild Animals Question 6.
Name the literary device used in the line “He hasn’t any ears at all”.
(a) Assonance
(b) Inversion
(c) Enjambment
(d) Alliteration

Answer

Answer: (d) Alliteration


Class 10 How To Tell Wild Animals MCQ Question 7.
Who smiles while catching their prey?
(a) Hyena
(b) Crocodile
(c) Both of them
(d) None of them

Answer

Answer: (a) Hyena


How To Tell Wild Animals MCQ Questions Question 8.
Which animals are the beasts of prey?
(a) Hyena
(b) Crocodile
(c) Both of them
(d) None of them

Answer

Answer: (c) Both of them


MCQ On How To Tell Wild Animals Question 9.
Which animal do you find while walking in a yard?
(a) Asian Lion
(b) Bengal Tiger
(c) Leopard
(d) Bear

Answer

Answer: (d) Bear


MCQs Of How To Tell Wild Animals Question 10.
Which animal’s roar is enough to kill you?
(a) Asian Lion
(b) Bengal Tiger
(c) Leopard
(d) Bear

Answer

Answer: (a) Asian Lion


Which animal's roar is enough to kill you?

We hope the given NCERT MCQ Questions for Class 10 English First Flight Poem 4 How to Tell Wild Animals with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 10 English Poem How to Tell Wild Animals MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Our Environment Class 10 MCQs Questions with Answers

Our Environment Class 10 MCQ Question 1.
In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass Grasshopper → Frog → Snake → Hawk
(a) 5 kJ
(b) 50 kJ
(c) 500 kJ
(d) 5000 kJ
Answer:

Class 10 Science Chapter 15 MCQ Question 2.
The Foodweb is constituted by:
(a) relationship between the organisms and the environment
(b) relationship between plants and animals
(c) various interlinked food chains in an ecosystem
(d) relationship between animals and the environment
Answer:

Our Environment Class 10 MCQ With Answers Question 3.
In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of:
(a) heat energy
(b) light energy
(c) chemical energy
(d) mechanical energy
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Our Environment MCQ Class 10 Question 4.
Choose the incorrect statement from the following:
(a) Ozone is a molecule formed by three atoms of oxygen.
(b) Ozone shields the surface of the Earth from ultraviolet radiations.
(c) Ozone is deadly poisonous
(d) Ozone gets decomposed by UV radiations
Answer:

Ch 15 Science Class 10 MCQ Question 5.
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the:
(a) food web
(b) ecological pyramid
(c) ecosystem
(d) food chain
Answer:
(a) food web

Explanation: Organisms of a higher trophic level feeding on several types of organisms belonging to a lower trophic level constitute the food web.

MCQ On Our Environment Class 10 Question 6.
Expand the abbreviation GAP:
(a) Governmental Agency for Pollution Control
(b) Gross Assimilation by Photosynthesis
(c) Ganga Action Plan
(d) Governmental Agency for Animal Protection
Answer:
(c) Ganga Action Plan

Explanation: GAP, 1985 came in existence to check water pollution in river Ganga.

Class 10 Our Environment MCQ Question 7.
Which of the following are biodegradable substances?
(a) Glass bottle, Grass
(b) Jutebag, polythene bag
(c) Cotton cloth, vegetable peels
(d) DDT, Pen refill
Answer:

MCQ Of Our Environment Class 10 Question 8.
Which of the statement is incorrect?
(a) Producers form the first prophic level.
(b) Produces trap solor energy and transform it into chemical energy in food.
(c) All plants are producers.
(d) Nutrients and energy enter the living world through producers.
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Class 10 Science Ch 15 MCQ Question 9.
Which of the following limits the number of trophic levels in a food chain?
(a) Decrease in energy at higher trophic levels
(b) Deficient food supply
(c) Polluted air
(d) Water
Answer:

Chapter 15 Class 10 Science MCQ Question 10.
In the given figure, the various trophic levels are shown in a pyramid. At which trophic level is maximum energy available?
Chapter 15 Class 10 Science MCQ
(a) T4
(b) T2
(c) Ti
(d) T3
Answer:

Chapter 15 Science Class 10 MCQ Question 11.
Disposable plastic plates should not be used because:
(a) they are made of materials with light weight
(b) they are made of toxic materials
(c) they are made of biodegradable materials
(d) they are made of non-biodegradable materials
Answer:

Environment Class 10 MCQ Question 12.
Which one of the following stakeholders of forests causes the maximum damage to forest?
(a) People who live in or around the forest
(b) The forest department of the government
(c) The wildlife and native enthusiasts
(d) The industrialists
Answer:
(d) The industralists

Class 10 Chapter 15 MCQ Science Question 13.
Food web is constituted by:
(a) Relationship between the biotic and abiotic components of ecosystem.
(b) Relationship between abiotic compo-nents and recycling of nutrients.
(c) Relationship between biotic compo-nents and biogeochemical cycles.
(d) Various interlinked food chains in an ecosystem.
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Class 10 Science Chapter 15 MCQ Online Test Question 14.
Consider a terrestrial food chain: Grass Grasshopper → Frog → Snake → Eagle
The energy transfer in the above food chain will be from:
(I) Producer to decomposer
(II) Producer to primary consumer
(III) Primary consumer to secondary consumer
(IV) Tertiary consumer to Secondary consumer
(a) Both (I) and (III)
(b) Both (I) and (IV)
(c) Both (II) and (III)
(d) Both (III) and (IV)
Answer:

MCQ Of Chapter 15 Science Class 10 Question 15.
Which of the statements regarding food chain are correct?
(I) All food chains are of equal length and complexity.
(II) Food chains generally consist of only three or four steps.
(III) The greatest number of organisms in a food chain is of the producers.
(IV) Relationships between organisms can be shown only by straight lines.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (III) and (IV)
(d) (II), (III) and (IV)
Answer:

Question 16.
Ozone-depleting substances are chiefly utilized in
(I) chimneys
(II) cooling and refrigeration applications and in the manufacturer of foam products
(III) all of the human activities
(IV) burning fossil fuels
(a) Only (I)
(b) Only (II)
(c) (I), (II) and (IV)
(d) (II), (III) and (IV)
Answer:

Question 17.
Consider the chemical reactions taking place at upper atmosphere:
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 2
Select the row containing the correct naming of A, B and C.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 3
Answer:
(a) A: Molecular oxygen; B: Ultraviolet radiations; C: Ozone molecule

Explanation: Ozone at the higher levels of the atmosphere is a product of Ultraviolet radiation acting on oxygen (02) molecule. The higher energy UV radiations split apart some molecular oxygen (O2) into free oxygen (O) atoms and these atoms then combine with the molecular oxygen to form ozone as shown below:
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 4

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 18.
The food habits of the organisms at the second and fourth trophic levels of a typical terrestrial are given in the table below.
Select the row containing the correct food habits:
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 5
Answer:

Question 19.
The protocol agreed upon in 1987 organized by the United Nations Environment Programme (UNEP) is related to:
(a) Food security
(b) Ozone layer depletion
(c) Global warming
(d) Sustainable deveLopment
Answer:
(b) Ozone Layer depletion

The protocol agreed upon in 1987 organized by the United Nations Environment Programme (UNEP) is related to:

Explanation: In 1987. the United Nations Environment Programme (UNEP) succeeded in forging an agreement to freeze CFC production at 1986 Levels in order to stop the depletion of ozone layer.

Question 20.
The formation of ozone in the stratosphere is powered by:
(a) UltravioLet radiation
(b) Infrared radiations
(c) Atmospheric oxygen
(d) CFC
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 21.
Which organism shown in the food chain above wouLd Contain the greatest concentration of chemical pollutants?
Phytoplankton → Krill → Small fish → Tuna → Shark
(a) Phytoplankton
(b) KriLl
(c) Tuna
(d) Shark

Assertion Reasoning questions Class 10 Science Chapter 15

For the following questions, two statements are given one labeled Assertion (A) and the other Labeled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given beLow:
(a) Both (A) and (R) true and (R) is correct explanation of the assertion
(b) Both (A) and (R) are true and (R) is correct Explanation of the assertion.
(c) (A) is true, but (R) is false.
(d) (A) is false, but (R) is true.

Question 22.
Assertion (A): Green plants of the ecosystem are the transducers.
Reason (R): Producers trap the radiant
energy of the sun and change it into chemical energy.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of assertion. Explanation: Green plants can make their own food. Hence, they are called producers. Since they capture the heat of the Sun to prepare their food, they are also called transducers. The plants prepare their food by trapping the energy of the Sun. They convert this light energy to chemical energy to form ATP molecules.

Question 23.
Assertion (A): Food chains generally consist of only three to four steps.
Reason (R): Autotrophs capture solar energy and convert it into chemical energy.
Answer:

Question 24.
Assertion (A): The maximum concentration of chemicals and pesticides occurs at the first trophic leveL
Reason (R): The chemicals and pesticides are not biodegradable.
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 25.
Assertion (A): Ozone shields the surface of the earth from ultraviolet radiation from the sun.
Reason (R): Ozone at the higher levels of the atmosphere is a product of UV radiations acting on oxygen molecules.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of assertion. Explanation: Ozone is formed when the high-energy UV radiations act on oxygen molecules (O2) and split it into free oxygen atoms (O) which combine with the molecular oxygen to form ozone (O3). Ozone thus shields the earth’s surface from the harmful effects of UV radiation.

Question 26.
Assertion (A): Improvements in our lifestyle have resulted in lesser amounts of waste material generation.
Reason (R): Changes in packaging have resulted in much of the waste generated being non-biodegradable.
Answer:
(d) (A) is false, but R is true.

Explanation: Improvements in our lifestyle have resulted in greater amounts of waste material generation due to changes in attitude and more and more things we use becoming disposable, which are also non-biodegradable.

Question 27.
Assertion (A): Frogs mostly occupy the second trophic level in food chains.
Reason: Frogs mostly feed on insects that depend on plants.
Answer:
(d) A is false, but R is true.

Explanation: Frogs mostly occupy the third trophic level in the food chain since they feed on insects which depend on plants and plants are the primary producers thus they occupy the first trophic level in the food chain. Thus A is false, but R is true.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 28.
Assertion(A): In the food chain third trophic level is occupied by Carnivores.
Reason(R): Some of the carnivores are secondary consumers.
Answer:

Question 29.
Assertion (A): Each step of the level of the food chain forms a trophic level.
Reason (R): The organisms occupying the first trophic levels are called autotrophs.
Answer:
(a) Both (A) and (R) are true, and (R) is the correct explanation of the assertion.

Question 30.
Assertion (A): Each step or level of the food chain forms a trophic leveL
Reason (R): The various components of the ecosystem are interdependent.
Answer:

Question 31.
Assertion (A): Polythene bags are non-biodegradable substances.
Reason (B): These bags cannot be broken down by microorganisms to simpler substances.
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 32.
Assertion (A): The food chains generally consist of only three or four steps.
Reason (B): Our food grains such as wheat and rice, vegetables and fruits and even meat contain varying amounts of pesticides.
Answer:
(b) Both (A) and (R) are true, but (R) is not the correct explanation of the assertion.

Explanation: The food chains generally consist of only three or four steps because after that the energy added to the biomass of each level is reduced and at the fourth trophic level it will be least. Thus Both A and R are true, but R is not the correct explanation of the assertion

Question 33.
Assertion (A): The amount of ozone in the atmosphere began to increase sharply in the 1980c.
Reason (R): The United Nations environment program (UNEP) succeeded in forging an agreement to freeze CFC production in 1987.
Answer:
(d) A is false, but R is true.

Explanation: The amount of ozone in the atmosphere began to decrease sharply in the 1980s because of the United Nations environment program (UNEP) succeeded in forging an agreement to freeze CFC production in 1987. Thus A is false, but R is true.

(Competency Based Questions (CBQs))

Question 1.
India today is facing the problem of overuse of resources, contamination of water and soil and lack of methods of processing the waste. The time has come for the world to say goodbye to “single-use plastics.” Steps must be undertaken to develop environment-friendly substitutes, effective plastic waste collection and methods of its disposal.

Indore treated 15 lakh metric tonnes of waste in just 3 years, through biomining and bioremediation techniques. Bioremediation involves introducing microbes into a landfill to naturally ‘break’ it down and biomining involves using trommel machines to sift through the waste to separate the ‘soil’ and the waste component.

The city managed to chip away 15 lakh metric tonnes of waste at a cost of around? 10 crore. A similar experiment was successfully carried out in Ahmedabad also.
(A) State two methods of effective plastic waste collection in your school.
Answer:

(B) Name any two uses of “single-use plastic” in daily Life.
Answer:
Uses of “Single-use plastic” in daily life.

  1. In medical field: Plastic syringes, plastic gloves are made of single-use plastic and are used so that infection can be controlled.
  2. Single-use plastic is also used in food industry for packing, straws, wrappers, spoons etc.
  3. In emergency/ disaster situations where food and water has to be transported. Plastic will be light in weight and this packaging will be helpful to transport.

(C) If we discontinue the use of plastic, how can an environment-friendly substitute be provided?
Answer:

(D) Do you think microbes will work similarly in landfill sites as they work in the laboratory? Justify your answer.
Answer:
No, the microbes will not work similarly in landfill sites as they work in laboratory. Microbes need suitable conditions like temperature, moisture etc. and nutrients to grow. In laboratory we provide this atmosphere artificially to microbes for their growth but landfill sites do not have suitable atmosphere to grow.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 2.
Prerna visited a farm along with her family. Her younger brother was interested in knowing what kind of food is eaten by animals such as cows, buffaloes and deers. She told her brother that all these animals are herbivores as these eat only grass and plants.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 6
How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?
(a) 100%
(b) 10%
(c) 1%
(d) 0.1%
Answer:
(b) 10%

Explanation: 10% of the net primary productivity of terrestrial ecosystem is eaten and digested by herbivores. According to 10% law, only 10% of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level.

Question 3.
Human body is made up of five important components, of which water is the main component. Food, as well as potable water, are essential for every human being. The food is obtained from plants through agriculture. Pesticides are being used extensively for a high yield in the fields.

These pesticides are absorbed by the plants from the soil along with water and minerals and from the water bodies these pesticides are taken up by the aquatic animals and plants. As these chemicals are not biodegradable, they get accumulated progressively at each trophic level.

The maximum concentration of these chemicals gets accumulated in our bodies and greatly affects the health of our mind and body.
(A) Why is the maximum concentration of pesticides found in human beings?
Answer:
As human beings occupy the top level in any food chain, the maximum concentration of these chemicals get accumulated in our bodies due to biological magnification.

Explanation: Pesticides are being used extensively for a high yield in the fields. These pesticides mix up with soil and water. From soil and water, these pesticides are absorbed by the plants along with water and minerals. When herbivores eat this plant food, these chemicals pesticides go into their bodies through the food chain. When the next trophic level, carnivores eat herbivores, these pesticides get transferred to their bodies. As these chemicals are not biodegradable, they get accumulated progressively at each trophic level.

(B) Give on method which could be applied to reduce our intake of pesticides through food to some extent.
Answer:

  • We can reduce our intake of pesticides through food to some extent:
  • Wash fruits and vegetables before eating. Buy organic and locally grown fruits and vegetables.
  • Use non-toxic methods for controlling insects in the kitchen garden. (Anyone).

(C) Various steps in a food chain represent:
(a) Food web
(b) Trophic level
(c) Ecosystem
(d) Biomagnification
Answer:

(D) With regard to various food chains operating in an ecosystem, man is a:
(a) Consumer
(b) Producer
(c) Producer and consumer
(d) Producer and decomposer
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 4.
Driving the Swach Bharat Abhiyaan forward, several NCOs are working towards the instaLLation of Blue and Green Dustbins for Municipal Corporations and schools in New Delhi. They are also carrying out a drive to educate children about the segregation of two different kinds of waste. The green is meant for wet waste and the blue one is for dry waste. This way they are separating biodegradable waste from non-biodegradable, thus providing various recycling and composting benefits and keeping the neighborhood clean and healthy.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 7
In the following groups of materials, which group(s) contain(s) only non-biodegradable items?
(I) Wood, paper, leather
(II) Polythene, detergent, PVC
(III) Plastic, detergent, grass
(IV) Plastic, Bakelite, DDT
(a) (I)
(b) (II)
(c) (I) and (II)
(d) (II) and (IV)
Answer:

Question 5.
Series of organisms taking part at various biotic levels form a food chain. Each step or level of the food chain forms a trophic level. The autotrophs or the producers are at the first trophic level. They fix up the solar energy and make it available for heterotrophs or the consumers.
The herbivores or the primary consumers come at the second, small carnivores or the secondary consumers at the third and larger carnivores or the tertiary consumers form the fourth trophic level.
The interactions among various components of the environment involve flow of energy from one component of the system to another.
(A) What are trophic levels?
Answer:
Decomposers are microorganisms which breakdown complex organic substances into simple inorganic substances and help in recycling of nutrients. They feed on the dead and decaying bodies of plants and animals. They return the nutrients back to the soil and thus help in making this ecosystem stable e.g. fungi, bacteria.

(B) Give an example of a food chain.
Answer:

(C) What is the role of decomposers in the ecosystem?
Answer:

(D) Explain why the number of trophic levels in a food chain is limited?
Answer:
Only 10% of the energy gets transferred from one trophic level to the next. So after 3 or 4 trophic levels, the energy available for passing on is too less to support another trophic level. Very little usable energy remains after 4 trophic levels. Hence the number of trophic levels in a food chain is limited.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 6.
Nitya observed her grandmother making compost which she used to give to her plants. Composting is the natural process of recycling organic matter, such as leaves and food scraps, into a valuable fertilizer that can enrich soil and plants. Anything that grows decomposes eventually; composting simply speeds up the process by providing an ideal environment for bacteria, fungi, and other decomposing organisms (such as worms, sowbugs, and nematodes) to do their work. The resulting decomposed matter, which often ends up looking like fertile garden soil, is called compost. Fondly referred to by farmers as “black gold,” compost is rich in nutrients and can be used for gardening, horticulture, and agriculture.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 8
The decomposers in an ecosystem:
(a) convert inorganic material to simpler forms
(b) convert organic material to inorganic forms
(c) convert inorganic material to organic compounds
(d) do not breakdown organic compounds
Answer:
(b) convert organic material to inorganic forms Explanation: The microorganisms, comprising bacteria and fungi, break down the dead remains and waste products of organisms. These microorganisms are the decomposers as they break down complex organic substances into simple inorganic substances that go into the soil and are once more used up by the plants.

Question 7.
You might have seen an aquarium, in the first activity, let us try to design an aquarium. What are the things that we need to keep in mind when we create an aquarium? The fish would need a free space for swimming (it could be a large jar), water, oxygen and food. We can provide oxygen through an oxygen pump (aerator) and fish food which is available in the market. If we add a few aquatic plants and animals it can become a self sustaining system.
In the second activity, while creating an aquarium did you take care not to put an aquatic animal which would eat others? Write the aquatic organisms in order of who eats whom and form a chain of at least three steps. A → B → C
(A) Identify the human-made ecosystems from the following:
(I) Ponds
(II) Crop fields
(III) Aquarium
(IV) Lakes
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) (I), (III) and (IV)
(d) (II), (III) and (IV)
Answer:
(b) Both (II) and (III)

Explanation: Ponds and lakes are natural ecosystems, although there are some artificial or human made Lakes too. Aquariums and crop fields are human made ecosystems as these have been made by humans.

(B) The biotic and abiotic components in an aquarium are listed in the table below. Select the row containing the correct answer:

Biotic Components

Abiotic Components

(a) Aquatic plants and animals, water  Glass tank, aerator
(b) Glass tank, aquatic plants and animals  Water, aerator
(c) Aquatic plants and animals  Glass tank, water, aerator
(d) Glass tank, water, aerator  Aquatic plants and animals

(a) Ponds are natural ecosystems whereas aquariums are artificial ecosystems.
(b) There are less fishes in an aquarium as compared to a pond or lake
(c) The size of fishes is small in an aquarium as compared to a pond or lake
(d) Decomposers are absent in an aquarium whereas they are present in ponds or lakes.
Answer:

(D) What would have happened if we had put predator fishes in the aquarium?
(a) They would eat all the smaller fishes thereby generating lot of waste.
(b) They would eat away all the food available in the aquarium.
(c) They would compete with smaller fish for food and nutrition.
(d) They would not pose any problem in the aquarium.
Answer:

(E) Consider the following aquatic food chain consisting of three steps:
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 9
Identify the organisms at A, B and C:
(a) A: Zooplankton; B: Phytoplankton; C: Large fish
(b) A: Phytoplankton; B: Zooplankton; C: Small fish
(c) A: Zooplankton; B: Phytoplankton; C: Small fish
(d) A: Phytoplankton; B: Zooplankton; C: Large fish
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 8.
Ritu went to the shopping mall to buy some gifts for her parents on their wedding anniversary. She was pleasantly surprised to see that all shop owners were giving the items purchased in beautiful and coloured paper bags instead of plastic bags.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 10
Why is it better to use paper bags than plastic bags?
Answer:
Paper is a biodegradable material, as it is obtained from wood whereas plastic is a non- biodegradable material. Therefore, paper is environment friendly whereas plastic causes environmental pollution.

Question 9.
In the first activity, find out what happens to the waste generated at home. Find out how the local body (panchayat, municipal corporation, resident welfare association) deals with the waste. Are there mechanisms in place to treat the biodegradable and nonbiodegradable wastes separately?
Calculate how much waste is generated at home in a day. How much of this waste is biodegradable? Suggest ways of dealing with this waste.
Next, find out how the sewage in your locality is treated. Are there mechanisms in place to ensure that local water bodies are not polluted by untreated sewage. Find out how the local industries in your locality treat their wastes.
(A) In the following groups of waste generated at home, which group contains only biodegradable items?
(a) Glass bottles, news paper, used tea leaves
(b) Polythene, detergent, Plastic packets
(c) Vegetable peels, paper, flowers
(d) Plastic packets, PVC, Glass bottles
Answer:
(c) Vegetable peels, paper, flowers

Explanation: Biodegradable substances are those substances which are easily degraded by natural processes by the action of microorganisms. All materials of plant and animal origin are biodegradable whereas man made substances such as plastic, detergents, PVC, glass, etc are non- biodegradable.

(B) Based on the study of how most local municipal authorities deal with the wastes generated at home, following statements are written. Select the incorrect statement.
(a) The waste generated at home are differentiated into biodegradable and non-biodegradable materials.
(b) All types of wastes are placed in a single bin.
(c) Most of the “dry-waste” is processed at waste-to-energy plants.
(d) Most of the “wet-waste” is sent for composting
Answer:

(C) Which of the following is not the correct practice of dealing with biodegradable wastes?
(a) Composting
(b) Anaerobic digestion of waste
(c) Landfills
(d) Burning
Answer:

(D) Select the correct statements regarding treatment of sewage in any locality:
(I) Sewage is treated at sewage treatment plants.
(II) Sewage treatment is the process of removing contaminants from industrial wastewater only.
(III) Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater.
(IV) Sewage is treatment is the process of removing contaminants from domestic and municipal wastewater.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (III) and (IV)
(d) Both (I) and (IV)
Answer:

(E) The best practice followed by local industries in treating their wastes is:
(a) Source reduction and reuse
(b) Incineration
(c) Dumping solid wastes in open drain
(d) Dumping chemical wastes directly into water bodies
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 10.
Vijay’s science teacher was once sharing experiences about his village life. He explained how as a child, he would often hear the sound of frogs during nights and especially during the rainy days. But the situation has changed now with lesser population of frogs even in villages.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 11
The number of malaria patients in a village increased tremendously when large number of frogs were exported from the village? What could be its cause?.
Answer:

Question 11.
The sun is the ultimate source of light and heat for planet Earth and sets in motion very large and complex systems that develop and sustain life. One such land-based ecosystem is the forest, supporting a biodiverse set of plants, which in turn provide food for other living things. Several distinct types of woodland habitats exist on Earth, such as conifer, deciduous and mixed. A study of the deciduous forest shows how a food chain functions within an ecosystem that experiences distinct seasonal changes.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 12
(A) In an ecosystem, the main source of energy is
(a) heat released during transpiration
(b) solar energy
(c) heat released during respiration
(d) water
Answer:
(b) Solar energy

Explanation: Sun is the main source of energy for an ecosystem since green plants or producers are able to synthesize food only with the help of solar energy .

(B) Refer to the figure of food chain given above, identify A, B, C and D and select the correct combination of plots provided in the table below.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 13
Answer:
(d) A: Producer; B: Primary Consumer; C: Secondary Consumer; D: Tertiary Consumer

Explanation: In all food chains, the green plants are the producers as they synthesize food by utilizing solar energy. The small insects marked !B’ or herbivores are the primary consumers as they feed on plants. Small animals marked ‘C’ are secondary consumers as they feed on small insects and similarly larger carnivores are tertiary consumers and marked ‘D‘ and ‘E’.

(C) Which of the following are functional components of an ecosystem?
(I) Decomposers
(II) Solar energy
(III) Energy flow
(IV)Air
(a) Both (I) and (II)
(b) Both (III) and (IV)
(C) (I), (II) and (IV)
(d) (I), (III) and (IV)
Answer:

(D) The correct identification of P and Q from the figure of food chain given is:
(a) P: Decomposers, Q: Nutrients
(b) P: Decomposers, Q: SoiL
(c) P: Producers, Q: Nutrients
(d) P Tertiary Consumers, Q: SoiL
Answer:

(E) The effect of completely removing ‘P’ from the food chain would be:
(a) Energy flow would be blocked
(b) Movement of minerals back to soil will be blocked
(c) Rate of decomposition would increase
(d) No carbon dioxide will be available for herbivores for respiration
Answer:
(b) Movement of minerals back to soil will be blocked

The effect of completely removing ‘P’ from the food chain would be:

Explanation: The organisms marked ‘P’ are the decomposers which help in cleansing our environment by feeding on dead and decaying organisms. They help in movement of minerals or nutrients back to the soil for the producers.

Question 12.
Sanket and his friends went to a nearby orchard to see how different fruits are cultivated. However, they observed that pesticides were being sprayed on the fruits without adhering to any guidelines.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 14
How can excessive use of pesticides to protect the crops from diseases cause long-term damage to mankind?
Answer:
Pesticides are non-biodegradabLe chemicals which enter our food chain through the fruits we eat or are absorbed by the aquatic plants and animals. These concentration of these chemicals increases progressively at each trophic level and maximum concentration is found in human beings. This is known as biological magnification.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 13.
Ozone (O3) is a gas which is present naturally within Earth’s atmosphere and is formed of three oxygen atoms. In the figure we see a standard profile of ozone gas concentration through the Earth’s atmosphere, extending from ground level up to 40 kilometres in altitude. Ozone plays a different role in atmospheric chemistry at different heights in the Earth’s atmosphere. We can differentiate this profile into two key zones:

Tropospheric ozone is that which is present in the lower atmosphere. Throughout most of the troposphere, ozone concentrations are relatively low (as shown in the diagram). Ground-level ozone can have negative impacts on human health and is therefore commonly referred to as ‘bad’ ozone.

Stratospheric ozone is that which is present in the upper atmosphere. As shown in the diagram, concentrations of ozone are higher in the stratosphere than in the troposphere.

The stratosphere includes the zone termed the ‘ozone layer’. In the ozone layer, it is often referred to as ‘good’ ozone since it plays a crucial role in absorbing potentially dangerous ultraviolet (UV-B) radiation from the sun.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 15
(A) Study the above graph and select the row containing the correct information:

Good Ozone Bad Ozone
Ionosphere  Mesosphere
Stratosphere  Ionosphere
Stratosphere  Troposphere
Mesosphere  Troposphere

Answer:
(c) Good ozone: Stratosphere; Bad ozone: Troposphere

(B) Ozone at higher atmosphere is a product of:
(a) Ultraviolet radiation acting on free oxygen.
(b) Infrared radiation acting on oxygen molecule.
(c) Infrared radiation acting on free oxygen.
(d) Ultraviolet radiation acting on oxygen molecule.
Answer:

(C) Select the incorrect statements regarding ozone gas:
(I) It is present only in troposphere.
(II) It is present in very small quantities in stratosphere.
(III) It can be beneficial or harmful, depending upon its location and concentration.
(IV) It shields the surface of the earth from ultraviolet (UV) radiation from the Sun.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) (I), (II) and (111)
(d) (II), (III) and (IV)
Answer:
(a) Both (I) and (II)

Explanation: Ozone is present in very low concentration in the lower atmosphere or troposphere, it is present in higher concentrations in the upper atmosphere or stratosphere. It is quite harmful when present in the lower atmosphere as it causes several diseases in humans. It is beneficial when present in upper atmosphere as it shields the surface of the earth from the harmful ultraviolet radiations of the sun.

(D) Which of the following products contain ozone-depleting substances?
(a) Motorbike, car with AC, Pesticides, Fire extinguisher
(b) Car with AC, refrigerator, fire extinguisher, aerosol sprays
(c) Motorbike, aerosol sprays, Pesticides, Fire extinguisher
(d) Heater, car with AC, Pesticides, Fire extinguisher
Answer:

(E) Which of the following is not the consequence of ozone layer depletion?
(a) Increased ultraviolet rays
(b) Malignant melanoma-Another form of skin cancer
(c) Cataracts and other eye damage
(d) Tides
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 14.
Monty was travelling to Delhi by road from Chandigarh. He observed a huge mountain like structure on GT Karnal road upon entering Delhi. He came to know that it was actually a landfill site and that Delhi has three landfill sites, viz. at Okhla, Bhalswa and Ghazipur. One can find waste burning at any give time in these landfills. They have also run out of space nearly a decade ago. Although the permissible limit for a garbage dumping is set to 20 meters, these sites have turned into huge mountains well beyond the permissible limit.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 16
Suggest two measures to manage the garbage we produce.
Answer:
Two measures to manage the garbage we produce are listed below:
(1) Segregate the wastes and try to reuse as many items as possible.
(2) Put wet and dry wastes in separate garbage bins so that they can be easily recycled.

Question 15.
Toxic substances move up the food chain and become more concentrated at each level. These substances are often pollutants from industries or pesticides from farming. Consider any small fish that eats plankton that has been tainted with mercury. Hundreds of small fish might then contain just few parts of the mercury, not enough to cause major harm. A bird then might eat hundreds of the small fish. so that now instead of 200 ppm ¡n a single fish, that bird has much higher Levels of mercury. The toxin amplifies as it moves up the food chain. The amount of mercury is measured in ppm, which means parts per million.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 17
(A) The phenomenon when concentrations of a harmful substance increases in organisms at higher trophic LeveLs in a food chain or food web is:
(a) Artificial eutrofication
(b) Biological accumulation
(c) Biological magnification
(d) Biological pollution
Answer:

(B) The table below gives the organism in a food web containing the Lowest and highest concentration of harmful chemical pollutants.
Select the row containing the correct answer.

Lowest Concentration

Highest Concentration

(a) Primary consumers  Secondary consumers
(b) Tertiary consumers  Producers
(c) Producers consumers  Secondary
(d) Producers consumers  Tertiary

Answer:
(d) Lowest Concentration: Producers Highest Concentration: Tertiary consumers

Explanation: The concentration of harmful chemical pollutants such as DDT and other pesticides increases progressively at each trophic level Therefore, tertiary consumers which occupy the highest trophic level will have the highest concentration and producers which occupy the Lowest trophic level will have the lowest concentration of harmful chemical pollutants.

(C) Which of the following statements are incorrect?
(I) Non-biodegradable wastes are biological in origin.
(II) Biodegradable wastes are degraded by microorganisms such as bacteria and fungi.
(III) Biodegradabte wastes enter the food chain and get biologically magnified.
(IV)Non-biodegradable wastes are absorbed by plants from the soil.
(a) Both (I) and (II)
(b) Both (I) and (III)
(c) Both (II) and (III)
(d) Both (III) and (IV)
Answer:
(b) Both (I) and (III)

Explanation: The biodegradable wastes are biological in origin whereas non-biodegradable wastes are plastic, metals etc. The non-biodegradable wastes enter the food chain and get biologically magnified as we higher up the food chain.

(D) It was observed that at places where DDT was used to control mosquitoes and other pests, the eggs of eagles would become fragiLe and break and the eagle almost became extinct. After DDT was banned by Lawmakers, eagle population has recovered.
The possible reason for this is:
(a) DDT is non-biodegradable and hence found in Largest concentration in tertiary consumers.
(b) DDT is non-biodegradable and found in Largest concentration in producers.
(c) Largest concentration of DDT is found in secondary consumers on which eagle feeds.
(d) DDT is a strong chemical which makes the eggs fragile.
Answer:

(E) Biological magnification is a result of
(a) climate change
(b) food shortages
(c) pollution
(d) extinction
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 16.
The chemical energy of food is the main source of energy required by all living organisms. This energy is transmitted to different trophic levels along the food chain. The energy flow in the ecosystem is one of the major factors that support the survival of such a great number of organisms. For almost all organisms on earth, the primary source of energy is solar energy.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 18
(A) The flow of energy in an ecosystem is:
(a) Omnidirectional
(b) Unidirectional
(c) Bidirectional
(d) May be unidirectional or bidirectional
Answer:

(B) Non-biodegradable wastes enter the food chain through:
(I) Soil
(II) Water
(III) Air
(IV) Decomposers
(a) Both (I) and (II)
(b) Both (II) and (IV)
(c) Both (I) and (III)
(d) Both (III) and (IV)
Answer:
(a) Both (I) and (II)

Explanation: The non-biodegradable pesticides are either washed down into the soil or into the water bodies. From the soil, these are absorbed by the plants along with water and minerals, and from the water bodies these are taken up by aquatic plants and animals and hence enter the food chain.

(C) What happens to the solar energy incident on the autotrophs in a terrestrial ecosystem?
(a) It is completely captured and converted into food energy by the autotrophs.
(b) A part of it is reverted to the solar input
(c) A part of it is captured and passes to the herbivores.
(d) It moves progressively through the various trophic levels in both directions.
MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 19
Answer:

(D) In the given food chain, suppose the amount of energy at fourth trophic level is 8 kJ.
Grass → Grasshopper → Frog → Snake → Hawk
Select the row containing the correct values of the energy available at the producer level and secondary consumer level?

Energy Available Producer Level Energy Available at Secondary Consumer Level
(a) 800kJ  8kJ
(b) 800kJ  80kJ
(c) 8000kJ  72kJ
(d) 8000kJ  80kJ

Answer:

(E) If only 10% of the energy from one trophic level passes up to the next level, what happens to the 90% energy that is not passed on?
(a) It is lost as heat to the environment
(b) It is used in digestion of food and in doing work.
(c) It is used for growth and reproduction.
(d) All of the above
Answer:
(d) Energy Available at Producer Level: 8000 Id; Energy Available at secondary consumer level: 80 kJ

Explanation: According to 10 percent law, 90% of the energy captured from the previous trophic level is lost to the environment and only 10 percent is made available to the next trophic level.
in this food chain, at the 4th trophic level, 8 kJ energy is available to the snake. Therefore, we can calculate backwards to find energy available at the third, second and first trophic levels.

  • Energy available to Snake (Tertiary consumer) = 8 kJ = 10% of 80 kJ
  • Energy available to Frog (Secondary consumer) = 80 kJ = 10% of 800 kJ
  • Energy available to Grasshopper (Primary consumer) = 800 kJ = 10% of 8000 kJ.
  • The energy available to Grass (Producer) = 8000 kJ

Very Short Answer Type Questions

Question 1.
List two main components of an ecosystem.
Answer:
Two main components of an ecosystem are

  1. Biotic component
  2. Abiotic component

Question 2.
What is meant by ‘biological magnification’?
Answer:
Biological magnification is the process by which the harmful and toxic substances enter the food chain and get concentrated in the body of living organisms at each successive level in food chain.

Question 3.
Name any two man-made ecosystems.
Answer:
Examples of man-made ecosystems are aquarium, crop-fields, zoo, botanical garden, Greenhouse

Related Theory
An ecosystem is a self-sustained unit that comprises of all the interacting living things together with their non-living environment Manmade or artificial ecosystems that are carefully maintained in controlled environment.

Biodiversity in the man-made ecosystem will be very low as compared to natural ecosystem.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 4.
Why should biodegradable and non-biodegradable wastes be discarded in two different dustbins?
Answer:

Question 5.
What is meant by tropic level in a food chain? Construct a terrestrial food chain with four trophic levels. The energy flow in a food chain is always unidirectional. Why?
Answer:
Trophic level = Each step or level of the food chain forms a trophic level.

  1. The ultimate source of energy used by living organisms is the sun.
  2. Only 1% of solar radiations are captured by green plants in a terrestrial ecosystem and converted into food energy by photosynthesis. This energy is stored as chemical energy of food.
  3. When green plants (producers) are eaten by primary consumers (Herbivores) a lot of heat is lost as heat to the environment and other activities. Only 10% of the food eaten is turned into its new body and is available for the next level of consumers (Primary carnivores).
  4. Only 10% amount of organic matter reaches the next level of consumers (secondary carnivores).
  5. Since, amount of available energy goes on decreasing at each trophic level, food chains usually consist of only 3 to 4 trophic levels. For example, grass receives 6000 J of energy from the sun. It will pass 10% of energy as per 10% law to grasshopper i.e. 600 J and so on.

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers 20

Question 6.
What will be the amount of energy available to the organisms of the 2nd trophic level of a food chain, if the energy available at the first trophic level is 10,000 joules?
Answer:

Question 7.
Why do producers always occupy the first trophic level on every food chain?
Answer:

MCQ Questions for Class 10 Science Chapter 15 Our Environment with Answers

Question 8.
Give 2 examples of each:
(A) Organisms occupying the first trophic level
Answer:
Organisms occupying the first trophic level: trees, shrubs, grass.

Related Theory
Green plants make their own food by the process of photosynthesse. The food or energy is transferred from one organism to the other through food chain. So the srarting point of a food chain in produces i.e., plant occupy the first prophic level.

(B) Abiotic factors of an ecosystem
Answer:
Abiotic factors of an ecosystem: soil, water, Light.

Related Theory
All the ecolytems are made of the main components biotic and abiotic components. The biotic component (living organisms) interact continuously with abiotic component (non-living component).

Question 9.
What are the advantages of doth bags over plastic bags during shopping?
Answer:

MCQ Questions for Class 10 Science with Answers

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Control and Coordination Class 10 MCQs Questions with Answers

Control And Coordination Class 10 MCQ Question 1.
The electrical impulse travels in a neuron from:
(a) Dendrite Axon → Axonal end → Cell body
(b) Cell body → Dendrite → Axon → Axonal end
(c) Dendrite → Cell body → Axon → Axonal end
(d) Axonal end → Axon → Cell body Dendrite
Answer:
(c) Dendrite → Cell body → Axon → Axonal end

Explanation: The electrical impulse travels from the dendrite to the cell body, and then along the axon to its axonal end. At the end of the axon, the electrical impulse sets off the release of some chemicals. These chemicals cross the gap, or synapse, and start a similar electrical impulse in a dendrite of the next neuron.

Control And Coordination MCQ Question 2.
In a synapse, a chemical signal is transmitted from:
(a) The dendritic end of one neuron to the axonal end of another neuron.
(b) Axon to cell body of the same neuron.
(c) Cell body to the axonal end of the same neuron.
(d) The axonal end of one neuron to the dendritic end of another neuron.
Answer:
(d) The axonal end of one neuron to the dendritic end of another neuron.

Explanation: The chemical signal is transmitted from axonal end of one neuron to the dendritic end of another nueron. This microscopic gap is called synapse.

MCQ On Control And Coordination Question 3.
In a neuron, the conversion of electrical signal to a chemical signal occurs at/in:
(a) Cell body
(b) Axonal end
(c) Dendritic end
(d) Axon
Answer:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Class 10 Science Chapter 7 MCQ Question 4.
Which is the correct sequence of the components of a reflex arc?
(a) Receptors Muscles → Sensory neuron → Motor neuron → Spinal cord
(b) Receptors → Motor neuron → Spinal cord Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle
Answer:
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

Explanation: A stimulus received by the receptors present on skin, is transmitted to the sensory neuron, which carries it to the central nervous system (the spinal cord and brain).

A motor neuron carries the message from the central nervous system to the effector which could be a muscle, a gland or both.

Related Theory
Nerve based pathway performed by an impulse from the receptor of stimulus to the effector organ is called the reflex arc. A reflex action is a nerve mediated automatic and spontaneous response to a certain stimulus without sonsulting the wilt of the individual coughing, sneezing, etc.

MCQ Of Control And Coordination Question 5.
Which of the following statements are true?
(I) Sudden action in response to something in the environment is called a reflex action.
(II) Sensory neurons carry signals from the spinal cord to muscles.
(III) Motor neurons carry signals from receptors to the spinal cord.
(IV) The path through which signals are transmitted from a receptor to muscle or a gland is called reflex arc.
(a) (I) and (II)
(b) (I) and (III)
(c) (I) and (IV)
(d) (I) (II) and (III)
Answer:
(c) (I) and (IV)

Explanation: Reflex action is a sudden action in response to some stimuli in the environment. Reflex arc is the path through which signals are transmitted from a receptor to a muscle or a gland.

Class 10 Control And Coordination MCQ Question 6.
Which of the following statements are true about the brain?
(I) The main thinking part of bi in is the hindbrain.
(II) Centres of hearing, smell, memory, sight, etc. are located in the fore-brain.
(III) Involuntary actions like salivation, vomiting and blood pressure are controlled by the medulla in the hind brain.
(IV) Cerebellum does not control posture and balance of the body.
(a) (I) and (II)
(b) (I) (II) and (III)
(c) (II) and (III)
(d) (III) and (IV)
Answer:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Control And Coordination MCQ With Answers Pdf Question 7.
The spinal cord originates from:
(a) Cerebrum
(b) Medulla
(c) Pons
(d) Cerebellum
Answer:

MCQ Of Control And Coordination Class 10 Question 8.
The movement of shoot towards light is:
(a) Geotropism
(b) Hydrotropism
(c) Chemotropism
(d) Phototropism

Control And Coordination Class 10 MCQ With Answers Question 9.
The main function of abscisic acid in plants is to:
(a) Increase the length of cells
(b) Promote cell division
(c) Inhibit growth
(d) Promote growth of stem
Answer:
(c) Inhibit growth

Explanation: Abscisic acid (ABA) is one example of a hormone which inhibits growth. Its effects include wilting of leaves.

Related Theory
Auxin is synthesized at the shoot tip, helps the cells to grow longer. When light is coming from one side of the plant, auxin diffuses towards the shady side of the shoot. This concentration of auxin stimulates the cells to grow longer on the side of the shoot which is away from light.

Gibberellin helps in the growth of the stem.

Cytokinin promotes cell division, and it is natural then that they are present in greater concentration in areas of rapid cell division, as in fruits and seeds.

Abscisic acid inhibits growth. Its effects include wilting of leaves. It is also responsible for falling of senescent leaves.

Class 10 Chapter 7 Science MCQ Question 10.
Iodine is necessary for the synthesis of which hormone?
(a) Adrenaline
(b) Thyroxin
(c) Auxin
(d) Insulin
Answer:
(b) Thyroxin

Explanation: Iodine is necessary for the thyroid gland to make the thyroxin hormone. Thyroxin regulates carbohydrate, protein and fat metabolism in the body so as to provide the best balance for growth. Iodine is essential for the synthesis of thyroxin. In case iodine is deficient in our diet, there is a possibility that we might suffer from goitre. One of the symptoms in this disease is a swollen neck.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

MCQ Questions For Class 10 Science Chapter 7 Question 11.
Choose the incorrect statement about insulin:
(a) It is produced from pancreas.
(b) It regulates growth and development of the body.
(c) It regulates blood sugar levels.
(d) Insufficient secretion of insulin will cause diabetes.
Answer:

Control And Coordination Class 10 MCQs Question 12.
Select the mismatched pair:
(a) Adrenaline – Pituitary gland
(b) Testosterone – Testes
(c) Oestrogen – Ovary
(d) Thyroxin – Thyroid gland
Answer:
(a) Adrenaline – Pituitary gland

Explanation: Adrenaline is secreted by the adrenal gland, whereas growth hormone is secreted by the pituitary gland.

Control And Coordination MCQ With Answers Question 13.
The growth of tendril in pea plants is due to:
(a) The effect of light.
(b) The effect of gravity.
(c) Rapid cell divisions in tendrillar cells that are away from the support.
(d) Rapid cell divisions in tendrillar cells in contact with the support.
Answer:

Control And Coordination MCQ Class 10 Question 14.
The growth of pollen tubes towards ovules is due to:
(a) Hydrotropism
(b) Chemotropism
(c) Geotropism
(d) Phototropism
Answer:

MCQs On Control And Coordination Question 15.
The movement of sunflower in accordance with the path of the sun is due to:
(a) Phototropism
(b) Geotropism
(c) Chemotropism
(d) Hydrotropism
Answer:

Question 16.
Involuntary actions in the body are controlled by:
(a) Medulla in the forebrain
(b) Medulla in the midbrain
(c) Medulla in the hindbrain
(d) Medulla in the spinal cord
Answer:
(c) Medulla in the hindbrain

Explanation: Medulla is a part of the hindbrain and controls involuntary action.

Question 17.
Which of the following is not an involuntary action?
(a) Vomiting
(b) Salivation
(c) Heartbeat
(d) Chewing
Answer:
(d) Chewing

Explanation: The actions that are not under our direct control are known as involuntary actions. Vomiting, salivation and heartbeat are examples of involuntary action. These involuntary actions are controlled by the medulla in the hindbrain.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 18.
A doctor advised a person to take an injection of insulin because:
(a) His blood pressure was low.
(b) His heart was beating slowly.
(c) He was suffering from goitre.
(d) His sugar level in blood was high.
Answer:
(d) His sugar level in blood was high.

Explanation: A person taking injections of insulin is suffering from diabetes. Insulin is a hormone which is produced by the pancreas. It helps in regulating blood sugar levels. If not secreted in proper amounts, the sugar level in the blood rises, causing many harmful effects.

Question 19.
The hormone which increases fertility in males is called:
(a) Oestrogen
(b) Testosterone
(c) Insulin
(d) Growth hormone
Answer:
(b) Testosterone

The hormone which increases fertility in males is called:

Explanation: Testosterone is the male sex hormone necessary for sperm production. In addition to regulating the formation of sperms, testosterone brings changes in appearance seen in boys, at the time of puberty.

Question 20.
Which of the following endocrine glands is unpaired?
(a) Adrenal
(b) Testes
(c) Pituitary
(d) Ovary
Answer:

Question 21.
The junction between two neurons is called:
(a) Cell junction
(b) Neuromuscular junction
(c) Neural joint
(d) Synapse
Answer:
(d) Synapse

Related Theory

  • Synapse is the junction between two neurons.
  • Cell junction is junction between neighboring cells.
  • Neuromuscular junction allows delivery of impulses from neurons to other cells, like muscles cells/gland.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 22.
In humans, life processes are controlled and regulated by:
(a) Reproductive and endocrine systems.
(b) Respiratory and nervous systems.
(c) Endocrine and digestive systems.
(d) Nervous and endocrine systems.
Answer:

Question 23.
Select the row containing incorrect information:

Endocrine Gland The function of hormone secreted
(a) Thyroid Regulates carbohydrate, protein and fat metabolism
(b) Pituitary Regulates growth and development of the body
(c) Pancreas Increasing blood sugar levels
(d) Adrenal Increasing heart rate

Answer:
(c) Endocrine Gland: Pancreas; Function of hormone – Increasing blood sugar levels

Question 24.
Look at the figure below and identify the structure labelled incorrectly:
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 1
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 2
Answer:
(d) D-Dendrite

Explanation: Part labelled D is capillary and not dendrite, as dendrites receive nerve impulses.

Question 25.
Given below are four statements regarding endocrine glands and hoimones. Select the correct statements:
(I) Hormones are secreted by the endocrine glands.
(II) Some endocrine glands secrete hormones in response to other hormones.
(III) Hormones are required in large quantities.
(IV) Many hormones are controlled by some form of a feedback mechanism.
(a) Both (I) and (II)
(b) Both (I) and (III)
(c) (I), (II), and (III)
(d) (I), (II), and (IV)
Answer:
(d) (I), (II), and (IV)

Explanation: Hormones are very potent substances, which means that very small amounts of a hormone may have profound effects on metabolic processes. Some endocrine glands secrete hormones in response to other hormones. The hormones that cause the secretion of other hormones are called tropic hormones. A hormone from gland A causes gland B to secrete its hormone. Many hormones are controlled by some form of a negative feedback mechanism, in this type of system, a gland is sensitive to the concentration of a substance that it regulates. A negative feedback system causes a reversal of increases and decreases in body conditions in order to maintain a state of stability.

Question 26.
Given below are four statements regarding the movement in plants.
Select the incorrect statements.
(I) Movement in plants happens at a point as the point of touch.
(II) The plants use electrical-chemical means to convey information from cell to cell.
(III) There are specialised tissues in plants for the conduction of information.
(IV) Plant cells change shape by changing the amount of water in them
(a) Both (I) and (III)
(b) Both (I) and (IV)
(c) Both (II) and (III)
(d) Both (II) and (IV)
Answer:

Question 27.
The junction between two nerves is known as:
(a) Synapse
(b) Axon
(c) Dendrite
(d) Capillary
Answer:
(a) Synapse

Explanation: The junction between two neurons is known as synapse. It is the site of transmission of nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 28.
The plant hormone that promotes dormancy m seeds and buds is:
(a) Auxin
(b) Gibberellin
(c) Cytokinin
(d) Abscisic acid
Answer:
(d) Abscisic acid

Explanation: Abscisic acid is one example of a hormone which inhibits growth. Its effects include wilting of leaves and promoting dormancy in seeds and buds.

Question 29.
The secretion of which hormone leads to physical changes in the body when you are 10-12 years of age?
(a) Oestrogen from testes and testosterone from ovary.
(b) Oestrogen from adrenal gland and testosterone from pituitary gland.
(c) Testosterone from testes and Oestrogen from ovary.
(d) Testosterone from thyroid gland and Oestrogen from pituitary gland.

Assertion Reasoning questions Class 10 Science Chapter 7

For the following questions, two statements are given: one labeled Assertion (A) and the other labeled Reason (R) Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both (A) and (R) are true and (R) is the correct explanation of the assertion.
(b) Both (A) and (R) are true, but (R) is not the correct explanation of the assertion.
(c) (A) is true, but (R) is false.
(d) (A) is false, but (R) is true.

Question 30.
Assertion (A): A growing plant appears to bend towards the direction of light.
Reason (R): The plant hormone auxin diffuses towards the shady side of the shoot.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of the (A).

Question 31.
Assertion (A): Plants convey the acquired information from cell to cell.
Reason (R): Plants have specialized tissues for the conduction of information.
Select the correct answer to the above question from the codes (a), (b), (c) and (d) as given below:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 32.
Assertion (A): In animals, the brain is the main controlling center for responding to changes in their environment.
Reason (R): The thinking process of the brain is not fast enough in animals.
Answer: (d) (A) is false, but (R) is true.

Explanation: Reflex arcs have evolved in animals as the thinking process of the brain is not fast enough. Reflex action is any spontaneous, involuntary, and automatic response to a stimulus due to a change in our environment. For e.g. when a person touches a hot plate a sudden action leading to the withdrawal of hand occurs in a certain manner, this path of manner determines the reflex arc.

Reflex arcs have evolved in animals in order to take sudden and involuntary actions which are required in certain circumstances where emergency response is required to save the body from situations that may lead to danger.

(Competency Based Questions (CBQs))

Question 1.
The thyroid gland is a bibbed structure situated in our neck region. It secretes a hormone called thyroxine. Iodine is necessary for the thyroid gland to make thyroxine. Thyroxine regulates carbohydrate, protein and fat metabolism in the body. It promotes the growth of body tissues also. When there ¡s an excess of thyroxine ¡n the body, a person suffers from hyperthyroidism and if this gland Is underactive it results in hypothyroidism. Hyperthyroidism is diagnosed by blood tests that measure the levels of thyroxine and Thyroid Stimulating Hormone (TSH). Hypothyroidism ¡s caused due to the deficiency of iodine in our diet resulting in a disease called goitre. Iodised salt can be included in our diet ro control it.
(A) Where is the thyroid gland situated in our body?
Answer:

(B) State the function of thyroxine in human body.
Answer:
Thyroxine hormone is secreted by thyroid glands. Thyroxine plays vital roles in: increasing the basal metabolic rate regulating long bone growth. Increasing body’s seasitivity to hormone adrenaline, digestive function.

(C) What is hyperthyroidism?
Answer:
Hyperthyroidism occurs when the thyroid gland produces excessive amount of hormone thyroxine

Related Theory
Hyperthyroidism means the thyroid gland is overactive and Overactive thyroid can sized up metabolism nervousness, anxiety, loss of mood swings etc.

(D) How can we control hypothyroidism?
Answer:
We can control hypothyroidism by including iodised salt in our diet. Deficiency of iodine in our diet reduces the levels of ISH and a disease called goitre

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 2.
While watching the TV show Master Chef Australia, Rima observed that the contestants were blindfolded and then asked to identify cubes of different fruits or food items by smelling and then by tasting them.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 3
Which of the following statements is correct about receptors?
(a) Gustatory receptors detect taste while olfactory receptors detect smell.
(b) Both gustatory and olfactory receptors detect smell.
(c) Auditory receptors detect smell and olfactory receptors detect taste.
(d) Olfactory receptors detect taste and gustatory receptors detect smell.
Answer:

Question 3.
Thyroid Stimulating Hormone (TSH) stimulates thyroid gland to produce thyroxine. Study the table given below.
Table: TSH Levels During Pregnancy
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 4
It is important to monitor TSH levels during pregnancy. High TSH levels and hypothyroidism can especially affect chances of miscarriage. Therefore, proper medication in consultation with a doctor is required to regulate/control the proper functioning of the thyroid gland.
(A) Give the full form of TSH.
Answer:
Full form of TSH: Thyroid Stimulating Hormone.

(B) State the main function of TSH.
Answer:
Thyroid stimulating hormone is produced by pituitary gland. Its main function is to regulate the production of hormones by the thyroid gland.)

Related Theory
A TSH test is a blood test that measures TSH i.e. how much of this hormone is present in blood. Thyroid gland is the largest gland endocrine gland, which is H-shaped present in the neck region. Thyroxine produced by thyroid gland regulates the metabolism of carbohydrates, proteins and fats.

(C) Why do TSH levels in pregnant women need to be monitored?
Answer:

(D) A pregnant woman has TSH level of 8.95 mU/L. What care is needed for her?
Answer:
A pregnant woman has TSH levels 8.95 m U/L which is very high in any of the three trimesters. A care is needed for her on regular basis to reduce the levels of TSH.

A regular test of TSH levels every 6-8 weeks should be done.
Proper medication in consultation with a doctor is required to regulate/control the proper functioning of the thyroid gland

Question 4.
Veer accidentally touched a thorn but quickly withdrew his hand. He later realized that he did this without even thinking about it! So, his reflexes were quite quick.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 5
Reflex action is controlled by:
(a) Brain
(b) Spinal cord
(c) Peripheral Nervous System
(d) Autonomic Nervous System
Answer:
(b) Spinal cord

Explanation: Reflex action is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex action involves a very simple nervous pathway called a reflex arc. A reflex arc starts off with receptors being excited on sensing a stimulus. They then send signals along a sensory neuron to the spinal cord, where the signals are passed on to a motor neuron. Invertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. The spinal cord acts as the main centre for reflex actions. The spinal cord acts as a link between spinal nerves and the brain.

Question 5.
When Sanket went to a nearby farm with his friend, he found lots of mature fruits and Leaves lying on the ground. He tried to find out the reason behind this.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 6

The substance that triggers the fall of mature leaves and fruits from plants is:
(a) Auxin
(b) Gibberellins
(c) Abscisic acid
(d) Cytokinin
Answer:
(c) Abscisic acid

Explanation: Abscisic acid is one example of a hormone which inhibits growth. Its effects include wilting of leaves and fall of mature leaves and fruits from plants.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 6.
Study are table in which the levels of Thyroid Stimulating Hormone (TSH) in men are given and answer the questions that follow on the basis of understanding of the following paragraph and the related studied concepts.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 7
men are at greater risk for developing abnormal TSH levels during instruction, white giving birth and after going through menopause. Found 5% of women in the United States have some kind of thyroid problem compared to 3% of men. Despite claims that high TSH increases risk for heart disease, a 2013 study found no link between high. TSH heart diseases. But a 2017 study showed that older women are specially at risk for developing thyroid cancer if they have high TSH calls along with thyroid nodules.
(A) A 35-year-old woman has TSH level 6.03 mll/L. What change should she bring in her diet to control this level?
Answer:
The normal range of TSH level falls between 0.4 -4.0 m U/L. A 35 year old woman has TSH level 6.03 m U/L. 21 means she has higher level of TSH. Chance are that she may have an underactive thyroid. She should follow iodine rich diet.

Explanation: The deficiency of iodine in the diet of a person produces less thyroxine hormone. When a person will start taking iodine rich diet lies iodised salt, the thyroid gland will work actively to produce more thyroxine hormone.

(B) When do women face a greater risk of abnormal TSH level?
Answer:
Women face a greater risk of abnormal TSH level during menstruation, while giving birth and after going through menopause.

(C) State the consequence of low TSH level.
Answer:
The consequences of low TSH level:
(1) Body metabolism slows down
(2) Weight gain
(3) Forgetfulness
(4) Lack of concentration
(5) Faligne
(6) Depression etc. (Any two)

(D) Name the mineral that is responsible for synthesis of hormone secreted by thyroid gland.
Answer:

Question 7.
Pranay’s father was suffering from diabetes since a long time. Apart from several dietary restrictions, he was given injections of insulin regularly.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 8
Why are some patients of diabetes treated by giving injections of insulin?
Answer:
Patients of diabetes have insufficient levels of insulin produced by pancreas and are therefore treated by giving injections of insulin. Insulin is a hormone which is produced by the pancreas and helps in regulating blood sugar levels. If it is not secreted in proper amounts, the sugar level in the blood rises causing many harmful effects.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 8.
A student was interested in knowing about various endocrine glands in human body, the hormones secreted by them and their functions. The figure below shows the endrocine glands in human males and females.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 9
(A) The table below gives the names of some endocrine glands and their functions. Identify the row containing incorrect information:

Name of Endocrine Gland Function
(a) Thyroid Regulates carbohydrate, protein and fat metabolism in the body
(b) Pituitary Regulates growth and development of the body
(c) Pancreas Regulates levels of uric acid in blood
(d) Testis Changes associated with puberty in males

Answer:
(c) Name of Endocrine Gland : Pancreas;
Function : Regulates levels of uric acid in blood.

Explanation: Insulin is a hormone which is produced by the pancreas and helps in regulating blood sugar levels.

(B) The endocrine gland known as the master gland in human beings is:
(a) Pituitary gland
(b) Hypothalamus gland
(c) Pineal gland
(d) Thymus glands
Answer:

(C) Identify which of the following state¬ments about thyroid gland is incorrect?
(I) Thyroid gland requires iodine to synthesize thyroxin.
(II) Deficiency of iodine in our diet may cause dwarfism.
(III) Thyroxin regulates protein, carbohydrates and fat metabolism in the body.
(IV) Iron is essential for the synthesis of thyroxin.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (III)
(d) Both (II) and (IV)
Answer:

(D) Name the gland which secretes the growth hormone:
(a) Thyroid
(b) Pituitary gland
(c) Hypothalamus
(d) Adrenal
Answer:
(b) Pituitary gland

Explanation: Growth hormone is one of the hormones secreted by the pituitary and it regulates growth and development of the body. If there is a deficiency of this hormone in childhood, it leads to dwarfism.

(E) The dramatic changes in body features associated with puberty are mainly be¬cause of the secretions of:
(a) Oestrogen from testes and testos¬terone from ovary
(b) Oestrogen from adrenal gland and testosterone from pituitary gland
(c) Testosterone from testes and oes¬trogen from ovary
(d) Testosterone from thyroid gland and ostrogen from pituitary gland
Answer:
(c) Testosterone from testes and ostrogen from ovary

Question 9.
Akriti’s grandfather complained of giddiness since past several days. Her father took her to the physician who checked his blood pressure and immediately prescribed medicines for hypertension.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 10
Which part of the brain is responsible for involuntary actions?
Answer:
The involuntary actions such as blood pressure, vomiting and salivation are controlled by the medulla in the hind-brain.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 10.
The neurons are cells with some special abilities. These cells get excited, because of the membranes that are in a polarised state. Each neuron has a charged cellular membrane, which means there is a voltage difference between the inside and the outside membrane.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 11
Membrane potential is the difference in the total charge between the inside of the cell and the outside of the cell. Action potential is a short-term change in the electrical potential that travels across the neuron cell.

A nerve impulse is generated when the stimulus is strong. This stimulus triggers the electrical and chemical changes in the neuron. When a nerve impulse is generated, there is a change in the permeability of the cell membrane. The sodium ions flow inside and potassium ions flow outside, causing a reversal of charges. The cell is now depolarised. This depolarization results in an action potential which causes the nerve impulse to move along the length of the axon. This depolarization of the membrane occurs along the nerve. A series of reactions occur where the potassium ions flow back into the cell and sodium ions move out of the cell. This whole process again results in the cell getting polarised, with the charges being restored.

When the nerve impulse reaches the end of the axon, there are some chemicals released from the neurotransmitters. They diffuse across the synaptic gap, which is the small space present between the axon and the receptors. Nerve impulses can be transmitted either by the electrical synapse or the chemical synapse.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 12
(A) From the statements given below regarding polarization and depolarization of neurons, select the row containing the correct information.

Polarization of Neuron Depolarization of Neuron
(a) The sodium ions flow into the cell and potassium ions move out of the cell. The sodium ions flow inside and potassium ions flow out-side
(b) The potassium ions flow into the cell and sodium ions move out of the cell. The sodium ions flow inside and potassium ions flow out-side
(c) The potassium ions flow into the cell and sodium ions move out of the cell. The potassium ions flow inside and sodium ions flow out-side
(d) The potassium ions flow into the cell and sodium ions move out of the cell. The potassium ions flow inside and sodium ions flow out-side

Answer:
(b) Polarization of Neuron: The potassium ions flow into the cell and sodium ions move out of the ceil.
Depolarization of Neuron: The potassium ions flow inside and sodium ions flow outside.

Explanation: When a nerve impulse is generated, there is a change in the permeability of the cell membrane. The cell gets depolarized when the sodium ions flow inside and potassium ions flow outside, causing a reversal of charges. The cell gets polarized when the potassium ion’s flow back into the cell and sodium ions move out of the cell.

(B) Four statements are given below. Select the incorrect statements.
(I) Nerve impulse is generated by the stimulus when a neuron is depolarized.
(II) Nerve impulse is generated by the stimulus when a neuron is polarized.
(III) The polarization of neuron results in an action potential.
(IV) The action potential causes the nerve impulse to move along the axon.
(a) Both (I) and (III)
(b) Both (II) and (IV)
(c) Both (I) and (IV)
(d) Both (II) and (III)
Answer:
(c) Both (II) and (III)

(C) The part of a neuron which receives information from other neurons is/are :
(a) Cell body
(b) Axon
(c) Dendrites
(d) Myelin sheath
Answer:

(D) The part of the neuron through which the impulse travels is:
(a) Axon
(b) Soma
(c) Dendrites
(d) Nucleus
Answer:
(a) Axon

Explanation: Axon is a singLe prominent extension that emerges from the cell body and is responsible for conducting outgoing impulses away from the cell and towards other cells.

(E) Control and coordination in animals is provided by:
(a) Nervous tissues only
(b) Muscular tissues only
(c) Receptors
(d) Both nervous and muscular tissues
Answer:

Question 11.
Sujay was watching a program when he found that several people of a particular region had swollen neck. He tried to gather more information regarding the probable cause of this disease.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 13
Identify the disease they were suffering from and a possible cause.
Answer:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 12.
Alzheimer’s disease is a progressive neurologic disorder that causes the brain to shrink (atrophy) and brain cells to die. Alzheimer’s disease is the most common cause of dementia – a continuous decline in thinking, behavioral and social skills that affects a person’s ability to function independently. The early signs of the disease include forgetting recent events or conversations. As the disease progresses, a person with Alzheimer’s disease will develop severe memory impairment and lose the ability to carry out everyday tasks. Common symptoms of Alzheimer’s disease include memory loss, language problems, and impulsive or unpredictable behavior. This happens because of a loss of connection between the nerve cells, or neurons, in the brain which means that information cannot pass easily between different areas of the brain or between the brain and the muscles or organs.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 14
(A) Select the incorrect statement:
(a) Alzheimer’s is a type of dementia that causes memory loss.
(b) It occurs only in elderly people.
(c) The early signs of the disease include forgetting recent events or conversations.
(d) As the disease progresses, a person develops severe memory impairment and loses the ability to carry out everyday tasks.
Answer:
(b) It occurs only in elderly people.

Explanation: Alzheimer’s disease can affect people of any age group and does not occur only in the elderly.

(B) In Alzheimer’s disease there is a loss of connection between the nerve cells, or neurons, in the brain because of which:
(I) Information cannot pass easily be-tween different areas of the brain.
(II) Information cannot pass easily be-tween the brain and the muscles or organs.
(III) Information cannot be acquired by the dendrite.
(IV) Gustatory and olfactory receptors stop working.
Select the correct statements:
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (II) and (IV)
Answer:
(a) Both (I) and (II)

Explanation: In Alzheimer’s disease there is a loss of connection between the nerve cells, or neurons, in the brain because of which Information cannot pass easily between different areas of the brain and between the brain and the muscles or organs.

(C) Given below are some parts of the brain and their functions.
Select the row containing the correct information:

Part of Human Brain Function
(a) Hindbrain The sensation of feeling full during eating a meal
(b) Cerebrum Controls involuntary actions such as salivation and vomitting
(c) Medulla Controls intelligence and memory
(d) Cerebellum Precision of voluntary actions

Answer:
(d) Part of Human Brain: Cerebellum: Function: Precision of voluntary actions. Explanation: Sensation of feeling full during eating a meal is due to forebrain. Cerebrum controls intelligence and memory whereas the medulla controls involuntary actions such as salivation and vomiting.

(D) The part of human brain that is responsible for maintaining the posture and balance of the body is:
(a) Cerebrum
(b) Medulla
(c) Cerebellum
(d) Pons
Answer:

(E) The main thinking part of the human brain is:
(a) Fore brain
(b) Mid brain
(c) Hind brain
(d) Cerebellum
Answer:

Question 13.
Motor neuron disease (MND) is the name for a group of diseases that affects particular nerves known as motor nerves, or motor neurons. In MND, those neurons generate and die and slowly the muscles become weaker. This eventually leads to paralysis. It is also known as Lou Gehrig’s disease, amyotrophic lateral sclerosis or ALS. MND is a progressive disease that usually starts slowly and gets worse over time. Symptoms sometimes starting on one side of the body and then spreading. Usually, the first things people notice are:
(1) weakness in the hands and grip
(2) slurred speech
(3) weakness in the legs, and a tendency to trip
(4) weakness of the shoulder, making lifting diffcult
(5) cramps and muscles twitching
The graph below shows the age wise incidence of MND per 1 lakh of population for men and women.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 15
This information, acquired at the end of the dendritic tip of a nerve cell, sets off a chemi¬cal reaction that creates an electrical impulse. This impulse travels from the dendrite to the cell body, and then along the axon to its end. At the end of the axon, the electrical impulse sets off the release of some chemicals. These chemicals cross the gap, or synapse, and start a similar electrical impulse in a dendrite of the next neuron. This is a general scheme of how nervous impulses travel in the body. A similar synapse finally allows delivery of such impulses from neurons to other cells, such as muscles cells or glands.
(A) Based on the passage above, select the correct statements regarding Motor Neuron Diseases (MND):
(I) MND incidence is higher in men than women.
(II) MND affect sensory neurons.
(III) MND is a progressive disease that usually starts slowly and gets worse over time.
(IV) MND may eventually lead to paral¬ysis as muscles become weaker.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) (I), (III) and (III)
(d) (I), (III) and (IV)
Answer:
(d) (I), (III) and (IV)

Explanation: Motor Neuron Diseases (MND) affects motor neurons and not sensory neurons.

(B) Select the row containing the incorrect information:

Type or Part of Neuron Function
(a) Dendrites These carry signals in the form of electrical impulses away from the cell body
(b) Sensory Neuron These are found in receptors such as the eyes, ears, tongue and skin, and carry nerve im¬pulses to the spinal cord and brain.
(c) Motor neuron These are found in the central nervous system (CNS) and control muscle movements.
(d) Relay neuron Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate.

Answer:
(a) Type or Part of Neuron: Dendrites: function: These are found in receptors such as the eyes, ears, tangue and skin and cavry nerve in pulses to the spinal cord and brain.

Explanation: The dendrites receive signals from other neurons or from sensory receptor ceLls. The dendrites are typically connected to the cell body, which is often referred to as the ‘control centre’ of the neuron, as it contains the nucleus. The axon is a long slender fibre that carries nerve impulses, in the form of an electrical signal known as action potential, away from the cell body towards the axon terminals, where the neuron ends. Most axons are surrounded by a myelin sheath (except for relay neurons) which insulates the axon so that the electrical impulses travel faster along the axon.

(C) The motor neurons:
(a) Are found in receptors
(b) Are found in the brain and spinal cord
(c) Are found in the Central nervous system
(d) Carry impulses to the spinal cord and brain
Answer:

(D) In the diagram above, the parts marked A and B are:
(a) Sensory neuron and motor neuron respectively
(b) Sensory neuron and relay neuron respectively
(c) Motor neuron and relay neuron respectively
(d) Motor neuron and sensory neuron respectively
Answer:

(E) In the diagram above, the motor neuron is labelled as:
(a) A
(b) B
(c) C
(d) D
Answer:
(c) C

Explanation: The motor neuron carries response from the spinal cord to the effector organs.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 14.
The peripheral nervous system (PNS) is one of two components that make up the nervous system of bilateral animals, with the other part being the central nervous system (CNS). The PNS consists of the nerves and ganglia outside the brain and spinal cord. The main function of the PNS is to connect the CNS to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.

In its simplest form, a reflex is viewed as a function of an idealized mechanism called the reflex arc. The primary components of the reflex arc are the sensory-nerve cells (or receptors) that receive stimulation, in turn connecting to other nerve cells that activate muscle cells (or effectors), which perform the reflex action.

A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain. The brain will receive the sensory input while the reflex is being carried out and the analysis of the signal takes place after the reflex action.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 16
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 17
(A) Afferent neurons carry nerve impulses from
(a) CNS to muscles
(b) CNS to receptors
(c) receptors to CNS
(d) effector organs to CNS
Answer:
(c) receptors to CNS

Explanation: The afferent neurons carry nerve impulses from the receptors to the central nervous system, whereas the efferent neurons carry impulses from the CNS to the effector organs.

(B) A neuron that carries information from the peripheral nervous system to the central nervous system is
(a) afferent neuron
(b) efferent neuron
(c) both
(d) none
Answer:

(C) Which of these illustrate a reflex arc?
(a) Brain → Spinal cord → Muscles
(b) Muscles → Receptor → Brain
(c) Muscles → Spinal cord → Brain
(d) Receptor → Spinal cord → Muscles
Answer:
(d) Receptor → Spinal cord → Muscles

Which of these illustrate a reflex arc?

Explanation: Reflex arc does not involve the brain. Infact it has evolved in higher animals as the thinking process of brain is not fast enough.

(D) Given below are the parts of the nervous system and their functions. Iden¬tify the row containing incorrect information:

Part Function
Peripheral Nervous System Consists of sensory organs
Central Nervous System To organize and analyze information received
Afferent Neurons Carry signals to the brain and spinal cord
Efferent Neurons Carry neural impulses away from the central nervous system and toward muscles

Answer:

(E) Select the correct statements:
(I) The PNS facilitates communication between the CNS and other parts of the body.
(II) The PNS consists of cranial nerves and spinal nerves
(III) The cranial nerves arise from the spinal cord.
(IV) The CNS carries signals to the brain and spinal cord.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (III) and (IV)
Answer:
(d) Both (III) and (IV)

Explanation: The communication between the central nervous system and the other parts of the body is facilitated by the peripheral nervous system consisting of cranial nerves arising from the brain and spinal nerves arising from the spinal cord.

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 15.
Plant hormones are among the most important biochemicals affecting plant growth and yield production under different conditions, including stress. Plant hormones include auxin, abscisic acid, ethylene, gibberellins, cytokinins, salicylic acid, strigolactones, brassinosteroids, and nitrous (nitric) oxide. Plant functioning under stress is affected by plant hormones, which can help the plant to tolerate the environmental stresses. Tropism is the type of plant movement, that is achieved by growth and responsible to directional light The movement is due to the action of auxin inside the plant part. Normally, phototropism, geotropism, hydrotropism and thigmotropism can be identified.
Within the above tropisms, the response of shoot tips are quite different from that of root tips. The basic difference is in the concentration they secreted. The level of auxin secreted from shoot tips is always on the ascending arm of the graph of response. But for the root tips, on the descending arm. Then, their responses become the opposite. The following graph shows the fact.
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 18
Auxin Concentration (Parts Per Milion)
Nb Logarithmic Scale For Auxin Concentration

(A) Observe the graph above and select the correct statements.
(I) Lower concentration of auxins decrease the growth of roots.
(II) Shoot growth requires greater concentrations of auxins as compared to the growth of roots.
(III) The application of very high concentration of auxin inhibits the growth of shoots directly.
(IV) The response of roots to auxin can thus be represented by an optimum curve with the peak at very low concentration.
(a) Both (I) and (III)
(b) Both (II) and (III)
(c) (I), (III) and (IV)
(d) (II), (III) and (IV)
Answer:
(d) (II), (III) and (IV)
Explanation: Lower concentrations of auxins increases the growth of roots.

(B) The table below lists few plant hormones and their functions. However, one row contains incorrect information. Select the row containing incorrect information.

Name of the plant hormone Function
(a) Auxin Promotes cell elongation
(b) Gibberellin Promotes seed germination and stem growth
(c) Cytokinin Inhibits cell division
(d) Abscisic acid Maintains seed dormancy

Answer:
(c) Name of plant hormone: Cytokinin: Function: Inhibits cell division

Explanation: Cytokinin is a plant hormone that promotes cell division, and they are present in greater concentration in areas of rapid cell division, such as in fruits and seeds.

(C) Plant roots exhibit:
(a) Positive geotropism
(b) Negative geotropism
(c) Positive chemotropism
(d) Negative hydrotropism
Answer:

(D) Which of the following plant hormone is responsible for seed germination?
(a) Auxin
(b) Gibberellin
(c) Ethylene
(d) Abscisic acid
Answer:

(E) The hormone that is a growth inhibitor is:
(a) Auxin
(b) Abscisic acid
(c) Cytokinin
(d) Gibberellin
Answer:
(b) Abscisic acid

Explanation: Abscisic acid is one example of a hormone that inhibits growth. Its effects include wilting of leaves.

Very Short Answer Type Questions

Question 1.
Which one appears more accurate and why?
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 19
MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers 20
Answer:
(A) is more appropriate as shoots are negatively geotropic and roots are positively geotropic. Hence, shoots grow upwards and roots grow downwards.

Related Theory
The roots of a plant always grow downwards while the shoots usually grow upwards and away from the earth. This upward and downward growth in response to the gravity pull is known as geotropism.

Question 2.
Name the two components of central nervous systems in humans.
Answer:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 3.
How is the spinal cord protected in the human body?
Answer:
Spinal cord is enclosed in a bony cage called the vertebral column.

Question 4.
A potted plant is made to lie horizontally on the ground. Which part of the plant will show (a) positive geotropism?
Answer:

Question 5.
Name any two types of tropism.
Answer:
Phototropism and geotropism.

Question 6.
Name the hormone that helps in regulating level of sugar is our blood. Name the gland that is secreted.
Answer:
Insulin helps in regulating blood sugar level. This hormone is secreted by the pancreas gland.

Question 7.
Give an example of a plant hormone that promotes its growth. Where it is synthesized?
Answer:

Question 8.
Mention the function of adrenaline hormone.
Answer:
The function of adrenaline hormone is to regulate blood pressure, heartbeat breathing rate, carbohydrate metabolism and mineral balance in the body.

Question 9.
State the function of:
(A) gustatory receptors, and
(B) olfactory receptors
Answer:

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination with Answers

Question 10.
Mention the part of the body where gustatory and olfactory receptors are located.
Answer:
Gustatory receptors are located in Cerebrum of fore-brain. Olfactory receptors are located in the Olfactory lobe of fore-brain.

MCQ Questions for Class 10 Science with Answers