MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry with Answers

Surface Chemistry Class 12 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Surface Chemistry Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 12 Chemistry Chapter 5 MCQ With Answers

Chemistry Class 12 Chapter 5 MCQs On Surface Chemistry

Surface Chemistry MCQ Question 1.
Volume of one mole of any gas at NTP is
(a) 11.2 litre
(b) 22.4 litre
(c) 10.2 litre
(d) 22.8 litre

Answer

Answer: (b) 22.4 litre

Surface Chemistry Class 12 MCQ Question 2.
Tyndall effect confirms the
(a) gravity effect on the sol. particles
(b) light scattering by the sol. particles
(c) heterogeneous nature of sols.
(d) Brownian motion of the sol. particles

Answer

Answer: (c) heterogeneous nature of sols.

MCQ On Surface Chemistry Question 3.
Which one of the following is alyophilic colloid?
(a) Milk
(b) Gum
(c) Fog
(d) Blood

Answer

Answer: (b) Gum

Class 12 Chemistry Chapter 5 MCQ Question 4.
Which of the following is not correct for enzyme catalysis?
(a) The enzyme activity is maximum at optimum pH which is between 5-7
(b) Each enzyme is specific for a given reaction
(c) The favourable temperature range of enzyme activity is between 25-37°C
(d) The enzymatic activity is increased in presence of certain substances.called co-enzymes

Answer

Answer: (c) The favourable temperature range of enzyme activity is between 25-37°C

MCQ On Surface Chemistry Class 12 Pdf Question 5.
Presence of traces of arsenious oxide (As2O3) in the reacting gases SO2 and O3 in presence of plantinised asbestos in contact process acts as
(a) catalytic promoter
(b) catalytic poison
(c) dehydrating agent
(d) drying agent

Answer

Answer: (b) catalytic poison

Ans. (b)
MCQ Of Surface Chemistry Class 12 Question 6.
Shape selective catalysis is a reaction catalysed by
(a) zeolite
(b) enzymes
(c) platinum
(d) Ziegler-Natta catalyst

Answer

Answer: (a) zeolite

Surface Chemistry MCQ Questions Question 7.
Which of the following types of metals make the most efficient catalyst?
(a) Alkali metals
(b) Transition metals
(c) Inner transition metals
(d) Alkaline earth metals

Answer

Answer: (b) Transition metals

Which of the following types of metals make the most efficient catalyst?

Surface Chemistry MCQ With Answers Pdf Question 8.
The oxide of nitrogen which acts as a catalyst in lead chamber process is
(a) NO
(b) NO2
(c) N2O4
(d) H2O5

Answer

Answer: (a) NO

Surface Chemistry MCQ Pdf Download Question 9.
The activity of an enzyme becomes ineffective
(a) at low temperature
(b) at atmospheric pressure
(c) at high temperature
(d) in aqueous medium

Answer

Answer: (c) at high temperature

Surface Chemistry Class 12 Objective Questions Question 10.
Which of the following can adsorb larger volume of hydrogen gas?
(a) Finely divided platinum
(b) Colloidal solution of palladium
(c) Small pieces of palladium
(d) A single metal surface of platinum

Answer

Answer: (b) Colloidal solution of palladium

MCQ Questions On Surface Chemistry Question 11.
Which of the following gases present in a polluted area will be adsorbed most easily on the charcoal gas mask?
(a) H2
(b) O3
(c) N2
(d) SO2

Answer

Answer: (d) SO2

Chapter 5 Chemistry Class 12 MCQs Question 12.
Which kind of catalysis can be explained on the basis of adsorption theory ?
(a) Homogeneous catalysis
(b) Heterogeneous catalysis
(c) Negative catalysis
(d) Auto catalysis

Answer

Answer: (b) Heterogeneous catalysis

Surface Chemistry MCQ Class 12 Question 13.
A colloidal system is which liquid is dispersed phase and solid is dispersion medium is classified as
(a) gel
(b) sol
(c) emulsion
(d) aerosol

Answer

Answer: (a) gel

Class 12 Surface Chemistry MCQ Question 14.
Which of the following will not form a colloidal system?
(a) Solid-gas
(b) Liquid-gas
(c) Gas-gas
(d) Gas-liquid

Answer

Answer: (c) Gas-gas

Surface Chemistry Class 12 MCQ Questions Question 15.
Fog in an example of colloidal system of
(a) liquid in gas
(b) gas in liquid
(c) solid in gas
(d) gas in solid

Answer

Answer: (a) liquid in gas

Question 16.
Substances which behave as normal electrolytes solution at low concentration and exhibit colloids properties at higher concentration are called
(a) lyophilic colloids
(b) lyophobic colloids
(c) macromolecular colloids
(d) associated colloids

Answer

Answer: (d) associated colloids

Question 17.
Which of the following acts as the best coagulating agent for ferric hydroxide sol?
(a) Potassium ferrocyanide
(b) Potassium chloride
(c) Potassium oxalate
(d) Aluminium chloride

Answer

Answer: (a) Potassium ferrocyanide

Question 18.
The formation of micelles takes place only above
(a) critical temperature
(b) Kraft temperature
(c) inversion temperature
(d) absolute temperature

Answer

Answer: (b) Kraft temperature

Question 19.
The size of colloidal particles ranges between
(a) 10-7 – 10-8 cm
(b) 10-9 – 10-11 cm
(c) 10-4 – 10-7 cm
(d) 10-2 – 10-3 cm

Answer

Answer: (c) 10-4 – 10-7 cm

Question 20.
At CMC (critical micelle concentration) the surface molecules
(a) dissociate
(b) associate
(c) become bigger in size due to adsorption
(d) become smaller in size due to decomposition

Answer

Answer: (b) associate

Question 21.
Which of the following is not a method for coagulation of lyophobic sols?
(a) By electrophoresis
(b) By mixing oppositely charged sols
(c) By adding electrolyte
(d) By adding a protective colloid

Answer

Answer: (d) By adding a protective colloid

Question 22.
Why is alum added to water containing suspended impurities?
(a) To make acolloidal solution
(b) To coagulate the suspended impurities
(c) To remove impurities of calcium and magnesium
(d) To protect the colloidal solution from gening precipitated

Answer

Answer: (b) To coagulate the suspended impurities

Question 23.
Movement of dispersion medium under the influence of electric field is known as
(a) electrodialysis
(b) electrophoresis
(c) electroosmosis
(d) cataphoresis

Answer

Answer: (c) electroosmosis

Question 24.
Which of the following is not a method of removing impurities from a colloidal sol?
(a) Electrodialysis
(b) Ultrafiltration
(c) Ultra centrifugation
(d) Distillation

Answer

Answer: (d) Distillation

Which of the following is not a method of removing impurities from a colloidal sol?

Question 25.
The substances which behave as colloidal solutions at higher concentration are called
(a) associated colloids
(b) multimolecular colloids
(c) macromolecular colloids
(d) protective colloids

Answer

Answer: (a) associated colloids

We hope the given NCERT MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry with Answers Pdf free download will help you. If you have any queries regarding Surface Chemistry CBSE Class 12 Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 12 Chemistry MCQ:

MCQ Questions for Class 12 Biology Chapter 16 Environmental Issues with Answers

Environmental Issues Class 12 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 12 Biology Chapter 16 Environmental Issues with Answers Pdf free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. We have provided Environmental Issues Class 12 Biology MCQs Questions with Answers to help students understand the concept very well.

Class 12 Biology Chapter 16 MCQ With Answers

Biology Class 12 Chapter 16 MCQs On Environmental Issues

MCQ On Environmental Issues With Answers Pdf Chapter 16 Question 1.
Which chemical substance affects the Ozone Layer?
(a) Chlorofluorocarbon
(b) Chlorine
(c) Hexafluorocarbon
(d) Molecular Carbon

Answer

Answer: (a) Chlorofluorocarbon

Environmental Issues MCQ Chapter 16 Question 2.
In Ozone Degradation which element acts as catalyst?
(a) Chlorine
(b) Flurine
(c) Oxygen
(d) Potassium

Answer

Answer: (a) Chlorine

MCQ On Environmental Issues Chapter 16 Question 3.
Ozone Layer is found in :
(a) Stratosphere
(b) Lithosphere
(c) Troposphere
(d) Hemisphere

Answer

Answer: (a) Stratosphere

Environmental Issues Class 12 MCQ Chapter 16 Question 4.
Acid Rain comes under which type of pollution?
(a) Water pollution
(b) Air pollution
(c) Soil pollution
(d) Sound Pollution

Answer

Answer: (c) Soil pollution

Acid Rain comes under which type of pollution?

MCQ On Environmental Issues Class 12 Chapter 16 Question 5.
Environment (Protection) Act came into force in?
(a) 1986
(b) 1989
(c) 1992
(d) 1993

Answer

Answer: (c) 1992

MCQs On Environmental Issues Chapter 16 Question 6.
Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with:
(a) DDT
(b) Ammonia
(c) CO2
(d) Water

Answer

Answer: (c) CO2

Environmental Issues Questions And Answers Pdf  Question 7.
Chlorofluoro carbon are responsible for:
(a) Acid rain
(b) Ozone layer depletion
(c) Global warming
(d) Thermal inversion

Answer

Answer: (d) Thermal inversion

Environmental Issues MCQ Pdf Chapter 16 Question 8.
Fluoride pollution mainly affect:
(a) Teeth
(b) Kidney
(c) Brain
(d) Heart

Answer

Answer: (a) Teeth

Environmental Issues Class 12 MCQ Pdf Question 9.
Nutrient enrichment of water bodies causes:
(a) Stratification
(b) Eutrophication
(c) Succession
(d) None of these

Answer

Answer: (b) Eutrophication

Environmental Issues MCQs Chapter 16  Question 10.
Increased skin cancer and high mutation rate are due to:
(a) Acid Rain
(b) Ozone Depletion
(c) CO2 Pollution
(d) CO Pollution

Answer

Answer: (b) Ozone Depletion

Environmental Issues MCQ Neet Chapter 16 Question 11.
Natural air pollutant are:
(a) Pollen Grains
(b) Gases of Volcanic Eruption
(c) Aerosol
(d) Fluorides

Answer

Answer: (b) Gases of Volcanic Eruption

Biology MCQs Class 12 Chapter 16 Question 12.
Which one of the following is not a greenhouse gas?
(a) Methane
(b) CO2
(c) Chlorofluoro carbon
(d) Hydrogen

Answer

Answer: (d) Hydrogen

Biology MCQ Class 12 Chapter 16 Question 13.
Minimata disease is caused by:
(a) ByChromium
(b) By Cadmium
(c) By Methyl mercury
(d) By Radioactive elements

Answer

Answer: (c) By Methyl mercury

MCQ Biology Class 12 Chapter 16 Question 14.
Bluebaby syndrome results from:
(a) Excess of TDS
(b) Excess of DO
(c) Excess of chloride
(d) Methaemoglobin

Answer

Answer: (d) Methaemoglobin

Class 12 Biology MCQ Chapter 16 Question 15.
A mutagenic pollutant is:
(a) Organophosphate
(b) Resines
(c) Hydrocarbons
(d) Nitrogen oxides

Answer

Answer: (c) Hydrocarbons

Class 12 Biology Ncert MCQ Chapter 16 Question 16.
Pollutant which causes acid rain is:
(a) SO2
(b) CO2
(c) CO
(d) Hydrocarbon

Answer

Answer: (a) SO2

Environmental Issues MCQ With Answers Chapter 16 Question 17.
Rain is called acid rain, its pH is below:
(a) 7
(b) 6.5
(c) 6
(d) 5.6

Answer

Answer: (d) 5.6

Environmental Issues Neet MCQ Chapter 16 Question 18.
Common indicator organism of water pollution is:
(a) Lemna pancicostata
(b) Eichhomia crassipes
(c) Escherichia coli
(d) Entamoeba histolytica

Answer

Answer: (c) Escherichia coli

Common indicator organism of water pollution is:

Environmental Issues Neet MCQ Pdf Chapter 16 Question 19.
Pollution of SO2 destroys:
(a) Lichen
(b) Fungi
(c) Algae
(d) Fish

Answer

Answer: (a) Lichen

Environmental Issues Neet MCQ Pdf Download Chapter 16 Question 20.
Permissible noise levels in a residential area at night time is:
(a) 35 dB
(b) 40 dB
(c) 45 dB
(d) 50 dB

Answer

Answer: (c) 45 dB

Question 21.
Act formulated in 1996 was:
(a) Insecticide Act
(b) Air (Prevention and Control of Pollution) Act
(c) Water (Prevention and control of Pollution) Act
(d) Environment protection Act

Answer

Answer: (d) Environment protection Act

We hope the given NCERT MCQ Questions for Class 12 Biology Chapter 16 Environmental Issues with Answers Pdf free download will help you. If you have any queries regarding Environmental Issues CBSE Class 12 Biology MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 12 Biology MCQ:

MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers

Electrochemistry Class 12 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Electrochemistry Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 12 Chemistry Chapter 3 MCQ With Answers

Chemistry Class 12 Chapter 3 MCQs On Electrochemistry

Electrochemistry MCQ Class 12 Question 1.
If 96500 coulomb electricity is passed through CuSO4 solution, it will liberate
(a) 63.5 gm of Cu
(b) 31.76 gm of Cu
(c) 96500 gm of Cu
(d) 100 gm of Cu

Answer

Answer: (b) 31.76 gm of Cu

Electrochemistry Class 12 MCQ Question 2.
Fused NaCl on electrolysis gives ………….. on cathode.
(a) Chlroine
(b) Sodium
(c) Sodium amalgam
(d) Hydrogen

Answer

Answer: (b) Sodium

MCQ On Electrochemistry Class 12 With Answers Question 3.
The standard electrode potentials for the half cell reactions are:
Zn → Zn2-– 2e– E° = 0.76 V
Fe → Fe2- + 2– E° = -0.41 V
The emf of the cell reaction
Fe2- + Zn → Zn2- + Fe is
(a) -0.35 V
(b) +0.35 V
(c) -1.17 V
(d) +1.17 V

Answer

Answer: (b) +0.35 V

Class 12 Chemistry Chapter 3 MCQ Question 4.
Which of the following is a secondary cell?
(a) Leclanche cell
(b) Lead storage battery
(c) Concentration cell
(d) All of these

Answer

Answer: (b) Lead storage battery

Which of the following is a secondary cell?

Electrochemistry MCQ Questions Class 12 Question 5.
For a certain redox reaction, E° is positive. This means that
(a) ΔG° is positive, K is greater than 1
(b) ΔG° is positive, K is less than 1
(c) ΔG° is negative, K is greater than 1
(d) ΔG° is negative, K is less than 1

Answer

Answer: (c) ΔG° is negative, K is greater than 1

Electrochemistry MCQ Class 12 Question 6.
Cell reaction is spontaneous, when
(a) E\(_{red}^{0}\) is negative
(b) ΔG° is negative
(c) E\(_{oxid}^{0}\) is Positive
(d) ΔG° is positive

Answer

Answer: (b) ΔG° is negative

MCQ Of Electrochemistry Class 12 Question 7.
Equilibrium constant K is related to E\(_{cell}^{0}\) and not E\(_{cell}\) because
(a) E\(_{cell}^{0}\) is easier to measure than E\(_{cell}\)
(b) E\(_{cell}\) becomes zero at equilibrium point but E\(_{cell}^{0}\) remains constant under all conditions
(c) at a given temperature, E\(_{cell}\) changes hence value of K can’t be measured
(d) any of the terms E\(_{cell}\) or E\(_{cell}^{0}\) can be used

Answer

Answer: (b) E\(_{cell}\) becomes zero at equilibrium point but E\(_{cell}^{0}\) remains constant under all conditions

MCQ Electrochemistry Class 12 Question 8.
Molar conductivity of 0.15 M solution of KCl at 298 K, if its conductivity of 0.0152 S cm-1 w ill be
(a) 124 Ω-1 cm² mol-1
(b) 204 Ω-1 cm² mol-1
(c) 101 Ω-1 cm² mol-1
(d) 300 Ω-1 cm² mol-1

Answer

Answer: (c) 101 Ω-1 cm² mol-1

MCQ Questions For Class 12 Chemistry Chapter 3 Question 9.
Electrical conductance through metals is called metallic or electronic conductance and is due to the movement of electrons. The electronic conductance depends on
(a) the nature and structure of the metal
(b) the number of valence electrons per atom
(c) change in temperature
(d) all of these

Answer

Answer: (d) all of these

MCQ Of Chapter 3 Chemistry Class 12 Question 10.
The specific conductivity of N/10 KCl solution at 20°C is 0.0212 ohm-1 cm-1 and the resistance of the cell containing this solution at 20°C is 55 ohm. The cell constant is
(a) 3.324 cm-1
(b) 1.166 cm-1
(c) 2.372 cm-1
(d) 3.682 cm-1

Answer

Answer: (b) 1.166 cm-1

MCQ On Electrochemistry Class 12 Pdf Question 11.
Faraday’s law of electrolysis is related to
(a) Atomic number of cation
(b) Speed of cation
(c) Speed of anion
(d) Equivalent weight of electrolyte

Answer

Answer: (d) Equivalent weight of electrolyte

Class 12 Electrochemistry MCQ Question 12.
The molar conductivity is maximum for the solution of concentration
(a) 0.004 M
(b) 0.002 M
(c) 0.005 M
(d) 0.001 M

Answer

Answer: (d) 0.001 M

MCQ Questions On Electrochemistry Question 13.
Units of the properties measured are given below. Which of the properties has been not matched correctly?
(a) Molar conductance = Sm2 mol-1
(b) Cell constant = m-1
(c) Specific conductance of = S m²
(d) Equivalence conductance = S m² (g eq)-1

Answer

Answer: (c) Specific conductance of = S m²

MCQ On Electrochemistry Class 12 Question 14.
How long would it take to deposit 50 g of Al from an electrolytic cell containing Al2O3 using a current of 105 ampere?
(a) 1.54 h
(b) 1.42 h
(c) 1.32 h
(d) 2.15 h

Answer

Answer: (b) 1.42 h

Electrochemistry MCQ Pdf Download Question 15.
The charge required for reducing 1 mole of MnO\(_{4}^{-}\) to Mn2- is
(a) 1.93 × 105 C
(b) 2.895 × 105 C
(c) 4.28 × 105 C
(d) 4.825 × 105 C

Answer

Answer: (d) 4.825 × 105 C

Question 16.
How much electricity in in terms of Faraday is required to produce 100 g of Ca from molten CaCl2?
(a) 1F
(b) 2F
(c) 3F
(d) 5F

Answer

Answer: (d) 5F

Question 17.
If a current of 1.5 ampere flows through a metallic wire for 3 hours, then how many electrons would flow through the wire?
(a) 2.25 × 1022 electrons
(b) 1.13 × 1023 electrons
(c) 1.01 × 1023 electrons
(d) 4.5 × 1023 electrons

Answer

Answer: (c) 1.01 × 1023 electrons

Question 18.
How many coulombs of electricity is required to reduce 1 mole of Cr2O\(_{7}^{2-}\) in acidic medium?
(a) 4 × 96500 C
(b) 6 × 96500 C
(c) 2 × 96500 C
(d) 1 × 96500 C

Answer

Answer: (b) 6 × 96500 C

How many coulombs of electricity is required to reduce 1 mole of Cr2O2/7 in acidic medium?

Question 19.
A current of 1.40 ampere is passed through 500 mL of 0.180 M solution of zinc sulphate for 200 seconds. What will be the molarity of Zn2+ions after deposition of zinc?
(a) 0.154 M
(b) 0.177 M
(c) 2 M
(d) 0.180 M

Answer

Answer: (b) 0.177 M

Question 20.
How much time is required to deposit 1 × 10-3 cm thick layer of silver (density of 1.05 g cm-3) on a surface of area 100 cm² by passing a current of 5 A through AgNO3 solution?
(a) 125 s
(b) 115 s
(c) 18.7 s
(d) 27.25 s

Answer

Answer: (c) 18.7 s

We hope the given NCERT MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers Pdf free download will help you. If you have any queries regarding Electrochemistry CBSE Class 12 Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 12 Chemistry MCQ:

MCQ Questions for Class 7 Science Chapter 3 Fibre to Fabric with Answers

Fibre to Fabric Class 7 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 7 Science Chapter 3 Fibre to Fabric with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Fibre to Fabric Class 7 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/

You can refer to NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 7 Science Chapter 3 MCQ With Answers

Science Class 7 Chapter 3 MCQs On Fibre to Fabric

Choose the correct answer:

Class 7 Science Chapter 3 MCQ Question 1.
Which one of the following is not a breed of sheep?
(a) Murrah
(b) Marwari
(c) Lohi
(d) Nali

Answer

Answer: (a) Murrah

Fibre To Fabric Class 7 MCQ With Answers Question 2.
What is the scientific name of mulberry tree?
(a) Magnifera indica
(b) Morus alba
(c) Desmodium girence
(d) None of these

Answer

Answer: (b) Morus alba

MCQ Questions For Class 7 Science Chapter 3 Question 3.
Silk is derived from
(a) cocoon
(b) pupa
(c) egg
(d) moth

Answer

Answer: (a) cocoon

MCQ Questions For Class 7 Science With Answers Chapter 3 Question 4.
Selective breeding is a process of
(a) selecting the offspring with desired properties.
(b) selecting the parents with desired properties.
(c) selecting an area for breeding.
(d) selecting fine hair for good quality wool.

Answer

Answer: (b) selecting the parents with desired properties.

Class 7 Science Ch 3 MCQ Question 5.
The general process that takes place at a sheep shearing shed is:
(a) removal of fleece.
(b) separating hair of different textures.
(c) washing of sheep fibre to remove grease.
(d) rolling of sheep fibre into yam.

Answer

Answer: (a) removal of fleece.

Ncert Class 7 Science Chapter 3 MCQ Question 6.
The rearing of silkworms for obtaining silk is called:
(a) cocoon
(b) silk
(c) sericulture
(d) silviculture

Answer

Answer: (c) sericulture

Class 7th Science Chapter 3 MCQ Question 7.
Which of the following is not a type of silk?
(a) Mulberry silk
(b) Tassar silk
(c) Mooga silk
(d) Moth silk

Answer

Answer: (d) Moth silk

MCQ On Fibre To Fabric Class 7 Question 8.
Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy?
(a) Woollen shawl
(b) Silk scarf
(c) Animal fur cap
(d) Leather jacket

Answer

Answer: (a) Woollen shawl

Class 7 Chapter 3 Science MCQ Question 9.
Silk fibre is obtained from:
(a) fleece of sheep
(b) cotton ball
(c) cocoon
(d) shiny jute stalk

Answer

Answer: (c) cocoon

Class 7 Science Chapter 3 MCQ With Answers Question 10.
Wool fibre cannot be obtained from which of the following?
(a) Goat
(b) Llama
(c) Alpaca
(d) Moth

Answer

Answer: (d) Moth

Match the following:

Column A Column B
(i) Selective breeding (a) Separating different textures
(ii) Shearing (b) Washing of hair removed from sheep
(iii) Scouring (c) Removing fleece from sheep
(iv) Reeling (d) Process of taking out threads from cocoon
(v) Sorting (e) Selecting parents for obtaining special characters in their offspring
Answer

Answer:

Column A Column B
(i) Selective breeding (e) Selecting parents for obtaining special characters in their offspring
(ii) Shearing (c) Removing fleece from sheep
(iii) Scouring (b) Washing of hair removed from sheep
(iv) Reeling (d) Process of taking out threads from cocoon
(v) Sorting (a) Separating different textures

Fill in the blanks:

1. A pile of ……………… is used for obtaining silk fibres.

Answer

Answer: cocoon

2. In India mostly ……………… are reared for getting wool.

Answer

Answer: sheep

3. Silk fibres are made of a ………………

Answer

Answer: protein

4. Silkworms are the ……………… of silk moth.

Answer

Answer: caterpillar

5. The hair of sheep are termed as ………………

Answer

Answer: fleece

6. Silk and ……………… are animal fibres.

Answer

Answer: wool

7. ……………… is a very old occupation in India.

Answer

Answer: Sericulture

8. ……………… and ……………… fibres are obtained from animals.

Answer

Answer: Silk, wool

9. Wool yielding animals bear ……………… on their body.

Answer

Answer: hair

10. Hair trap a lot of ………………, which is a poor ……………… of heat.

Answer

Answer: air, conductor

Choose the true and false statements from the following:

1. Wool and silk are the animal fibres.

Answer

Answer: True

2. Silk is obtained from the fleece of sheep.

Answer

Answer: False

3. Pashmina shawls woven from the wool obtained from the under fur of Kashmiri goats.

Answer

Answer: True

4. Silk moths spin the silk fibres.

Answer

Answer: False

5. Silk fibre is chemically a protein.

Answer

Answer: True

6. The most common silk moth is the mulberry silk moth.

Answer

Answer: True

7. For reeling of silk, cocoon are boiled.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 7 Science Chapter 3 Fibre to Fabric with Answers Pdf free download will help you. If you have any queries regarding Fibre to Fabric CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 7 Science MCQ:

MCQ Questions for Class 7 Science Chapter 16 Water: A Precious Resource with Answers

Water: A Precious Resource Class 7 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 7 Science Chapter 16 Water: A Precious Resource with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Water: A Precious Resource Class 7 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/

You can refer to NCERT Solutions for Class 7 Science Chapter 16 Water: A Precious Resource to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 7 Science Chapter 16 MCQ With Answers

Science Class 7 Chapter 16 MCQs On Water: A Precious Resource

Choose the correct answer:

Question 1.
On which day the world water day is celebrated?
(a) 23rd March
(b) 22nd March
(c) 21st March
(d) None of these

Answer

Answer: (b) 22nd March

Question 2.
Which year was observed as International Year of Fresh Water?
(a) 2003
(b) 2004
(c) 2006
(d) 2002

Answer

Answer: (a) 2003

Question 3.
Which of the following does not show water shortage?
(a) Taps running dry
(b) Long queue for getting water
(c) Marches and protests for demand of water
(d) A family gets three buckets of water per person per day

Answer

Answer: (d) A family gets three buckets of water per person per day

Question 4.
Seas and oceans are full of water on earth. However, a very small percentage of water present on earth is available for us. This percentage is roughly
(a) 0.006%
(b) 0.06%
(c) 0.6%
(d) 6%

Answer

Answer: (a) 0.006%

Question 5.
Which of the following is a way to use water economically?
(a) construction of bawris
(b) Rainwater harvesting
(c) Drip irrigation
(d) Infiltration

Answer

Answer: (c) Drip irrigation

Question 6.
On which of the following day is World Water Day observed
(a) 22 March
(b) 14 November
(c) 2 October
(d) 21 December

Answer

Answer: (a) 22 March

Question 7.
The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of
(a) 5 litres
(b) 15 litres
(c) 30 litres
(d) 50 litres

Answer

Answer: (d) 50 litres

Question 8.
“Every Drop Counts” is a slogan related to
(a) counting of drops of any liquid
(b) counting of water drops
(c) importance of water
(d) importance of counting

Answer

Answer: (c) importance of water

Question 9.
Water cycle does not involve which of the following?
(a) Evaporation
(b) Condensation
(c) Formation of clouds
(d) Rainwater harvesting

Answer

Answer: (d) Rainwater harvesting

Question 10.
Which of the following inhibits the seepage of rainwater into ground?
(a) A pukka floor
(b) playground
(c) Grass lawn
(d) Forest land

Answer

Answer: (a) A pukka floor

Match the following:

Column A Column B
(i) Solid (а) Water under water table
(ii) Liquid (b) Traditional way of collecting water
(iii) Gas (c) Water between the hard rocks
(iv) Groundwater (d) Ice, snow
(v) Aquifer (e) Water in ponds, rivers, oceans
(vi) Bawri (f) Water vapour
Answer

Answer:

Column A Column B
(i) Solid (d) Ice, snow
(ii) Liquid (e) Water in ponds, rivers, oceans
(iii) Gas (f) Water vapour
(iv) Groundwater (а) Water under water table
(v) Aquifer (c) Water between the hard rocks
(vi) Bawri (b) Traditional way of collecting water

Fill in the blanks:

1. Water on the earth has been maintained for millions of years by various processes which make ………………..

Answer

Answer: water cycle

2. the ……………….. form of water is the water vapour.

Answer

Answer: gaseous

3. The ……………….. in the soil indicates the presence of under groundwater.

Answer

Answer: moisture

4. The process of ……………….. of water into the ground is called infiltration.

Answer

Answer: seeping

5. Water in the ……………….. can be easily pumped out with the help of tube wells or handpumps.

Answer

Answer: aquifer

6. ……………….. was the traditional way of collecting water.

Answer

Answer: Bawri

Choose the true and false statements from the following:

1. The water that is fit for use is called fresh water.

Answer

Answer: True

2. The water table varies from place to place and it may even change at a given place.

Answer

Answer: True

3. The water found above the water table is called groundwater.

Answer

Answer: False

4. Drip irrigation has a disadvantage that it is associated with huge loss of water.

Answer

Answer: False

5. Water is essential for all living beings.

Answer

Answer: True

6. Plants wilt and ultimately dry up if they are not watered for a few days.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 7 Science Chapter 16 Water: A Precious Resource with Answers Pdf free download will help you. If you have any queries regarding Water: A Precious Resource CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 7 Science MCQ:

MCQ Questions for Class 7 Science Chapter 4 Heat with Answers

Heat Class 7 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 7 Science Chapter 4 Heat with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Heat Class 7 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/

You can refer to NCERT Solutions for Class 7 Science Chapter 4 Heat to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 7 Science Chapter 4 MCQ With Answers

Science Class 7 Chapter 4 MCQs On Heat

Choose the correct answer:

Class 7 Science Chapter 4 MCQ Question 1.
Which one of the following is a reliable measure?
(a) Hotness
(b) Coldness
(c) Temperature
(d) None of these

Answer

Answer: (c) Temperature

MCQ Questions For Class 7 Science Chapter 4 Question 2.
Name the device which is used to measure the hotness or coldness of an object.
(a) Picometer
(b) Barometer
(c) Manometer
(d) Thermometer

Answer

Answer: (d) Thermometer

Ncert Class 7 Science Chapter 4 MCQ Question 3.
Which one is filled in the bulb of a thermometer?
(a) Mercury
(b) Lead
(c) Copper
(d) Silver

Answer

Answer: (a) Mercury

Class 7 Science Ch 4 MCQ Question 4.
What is the normal temperature of a healthy person?
(a) 37°C
(b) 37°F
(c) 37 K
(d) None of these

Answer

Answer: (a) 37°C

Heat Class 7 MCQ With Answers Question 5.
Heat always flows
(a) from a colder object to a hotter object
(b) from a hotter object to a colder object
(c) in both the directions
(d) heat never flows from one object to other

Answer

Answer: (b) from a hotter object to a colder object

MCQ Questions For Class 7 Science With Answers Chapter 4 Question 6.
Conduction is the method of transfer of heat in
(a) liquids
(b) solids
(c) gases
(d) vacuum

Answer

Answer: (b) solids

Class 7 Chapter 4 Science MCQ Question 7.
Heat from the sun reaches to us by
(a) radiation
(b) conduction
(c) convection
(d) all of these

Answer

Answer: (a) radiation

Class 7th Science Chapter 4 MCQ Question 8.
A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because:
(a) friction between the layers of newspaper produces heat.
(b) air trapped between the layers of newspaper is a bad conductor of heat.
(c) newspaper is a conductor of heat.
(d) newspaper is at a higher temperature than the temperature of the surroundiong.

Answer

Answer: (b) air trapped between the layers of newspaper is a bad conductor of heat.

Science Class 7 Chapter 4 MCQ Question 9.
A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile:
(a) is a better conductor of heat than the wooden tile.
(b) is polished while wooden tile is not polished.
(c) reflects more heat than wooden tile.
(d) is a poor conductor of heat than the wooden tile.

Answer

Answer: (a) is a better conductor of heat than the wooden tile.

Ch 4 Science Class 7 MCQ Question 10.
Paheli and Boojho measured their body temperature. Paheli found her’s to be 98.6°F and Boojho recorded 37°C. Which of the following statement is true?
(a) Paheli has a higher body temperature than Boojho.
(b) Paheli has a lower body temperature than Boojho.
(c) Both have normal body temperature.
(d) Both are suffering from fever.

Answer

Answer: (c) Both have normal body temperature.

Match the following:

Column A Column B
(i) Conduction (a) Wood, Plastic, Wool, Air, Water
(ii) Convection (b) Day time
(iii) Radiation (c) Solids
(iv) Conductors (d) Night
(v) Insulators (e) Liquids
(vi) Land breeze (f) Metals
(vii) Sea breeze (g) A device to measure the degree of hotness
(viii) Dark coloured surfaces (h) Poor absorbers of heat
(ix) Light coloured surfaces (i) Good absorbers of heat
(x) Thermometer (j) Requires no medium
Answer

Answer:

Column A Column B
(i) Conduction (c) Solids
(ii) Convection (e) Liquids
(iii) Radiation (j) Requires no medium
(iv) Conductors (f) Metals
(v) Insulators (a) Wood, Plastic, Wool, Air, Water
(vi) Land breeze (d) Night
(vii) Sea breeze (b) Day time
(viii) Dark coloured surfaces (i) Good absorbers of heat
(ix) Light coloured surfaces (h) Poor absorbers of heat
(x) Thermometer (g) A device to measure the degree of hotness

Fill in the blanks:

1. Temperature is the measure of ………………. of an object.

Answer

Answer: hotness

2. The thermometer used to measure human body temperature is called ………………. thermometer.

Answer

Answer: clinical

3. The normal temperature of human body is ………………. °C.

Answer

Answer: 37

4. A ………………. near the bulb of a clinical thermometer prevents mercury level from falling of its own.

Answer

Answer: kink

5. In ………………. generally, the heat is transferred by the process of conduction.

Answer

Answer: solids

6. The water and air are ………………. conductors of heat.

Answer

Answer: poor

7. In coastal areas, cold air flows in the day from sea to land. It is called ……………….

Answer

Answer: sea breeze

8. When we come out in the sun we feel ……………….

Answer

Answer: warm

9. All hot bodies radiate ……………….

Answer

Answer: heat

10. Wool is a ………………. conductor of heat.

Answer

Answer: poor

Choose the true and false statements from the following:

1. Our sense of touch about hotness or coldness is not always reliable.

Answer

Answer: True

2. Normal temperature of human body is 98.6°C.

Answer

Answer: False

3. In all cases heat flows from a hotter object to a colder object.

Answer

Answer: True

4. Water at higher temperature feels more hot.

Answer

Answer: True

5. Marking on clinical thermometer is from 0°C to 100°C.

Answer

Answer: False

6. Shining thread in thermometer is the column of mercury.

Answer

Answer: True

7. The materials which allow heat to pass through them easily are called conductors.

Answer

Answer: True

8. Water and air are good conductors of heat.

Answer

Answer: False

9. Woollen clothes keep us warm during winter.

Answer

Answer: True

10. The maximum and minimum temperature of the day is measured by a laboratory thermometer.

Answer

Answer: False

We hope the given NCERT MCQ Questions for Class 7 Science Chapter 4 Heat with Answers Pdf free download will help you. If you have any queries regarding Heat CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 7 Science MCQ:

MCQ Questions for Class 11 Physics Chapter 6 Work, Energy and Power with Answers

Work, Energy and Power Class 11 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 11 Physics Chapter 6 Work, Energy and Power with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Work, Energy and Power Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 6 MCQ With Answers

Physics Class 9 Chapter 6 MCQs On Work, Energy and Power

Work Energy And Power Class 11 MCQ Question 1.
A man of 60 kg weight is standing at rest on a platform. He jumps up vertically a distance of 1 m and the platform at the same instant moves horizontally forward with the result that the man lands 1 meter behind the point on the platfrom from where the took the jump the total work done by the man at the instant he lands is
(a) 300 J
(b) 150 J
(c) 600 J
(d) zero

Answer

Answer: (c) 600 J

Class 11 Physics Chapter 6 MCQ Question 2.
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
(a) 7.2 J
(b) 3.6 J
(c) 120 J
(d) 1200 J

Answer

Answer: (b) 3.6 J

MCQ Questions For Class 11 Physics Chapter 6 Question 3.
A body of mass 20 kg is initially at a height of 3 m above the ground . It is lifted to a height of 2 m from that position. Its increase in potential energy is
(a) 100 J
(b) 392 J
(c) 60 J
(d) -100 J

Answer

Answer: (b) 392 J

MCQ On Work Power And Energy Class 11 Question 4.
A body of mass 10 kg is travelling with uniform speed of 5 m/s. Its kinetic energy is
(a) 25 J
(b) 125 J
(c) 1250 J
(d) 1000 J

Answer

Answer: (b) 125 J

Work Power And Energy Class 11 MCQ Question 5.
A ball is dropped from a height of 1 m. If the coeffcient of restitution between the surface and ball is 0.6, the ball rebounds to a height of
(a) 0.6 m
(b) 0.4 m
(c) 1 m
(d) 0.36 m

Answer

Answer: (d) 0.36 m

Work Energy And Power Class 11 MCQs Pdf Question 6.
A quantity of work of 1000 J is done in 2 seconds. The power utilised is
(a) 998 W
(b) 1002 W
(c) 2000 W
(d) 500 W

Answer

Answer: (d) 500 W

Class 11 Work Energy And Power MCQs Question 7.
When the linear momentum of a particle is increased by 1% its kinetic energy increases by x%. When the kinetic energy of the particle is increased by 300%, its linear momentum increases by y%. The ratio of y to x is
(a) 300
(b) 150
(c) 100
(d) 50

Answer

Answer: (d) 50

MCQ Of Work Energy And Power Class 11 Question 8.
A solid cylinder of length 1 m and diameter of cross section y 100 cms is first placed with its axis vertical its then slowly inclined till its axis is horizontal. The loss in its potential energy if the mass of the cylinder is 10 kg is
(a) 5g J
(b) 10g J
(c) Zero
(d) g J

Answer

Answer: (c) Zero

Class 11 Physics Work Energy And Power MCQ Question 9.
A body of mass 10 kg moving at a height of 2 m, with uniform speed of 2 m/s. Its total energy is
(a) 316 J
(b) 216 J
(c) 116 J
(d) 392 J

Answer

Answer: (b) 216 J

Ch 6 Physics Class 11 MCQ Question 10.
Two masses 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is
(a) 4 : 1
(b) 1 : 2
(c) 0 : 1
(d) 1 : 6

Answer

Answer: (b) 1 : 2

Class 11 Physics Ch 6 MCQ Question 11.
A body of mass 10 kg is initially at a height of 20 m above the ground. It falls to a height of 5 m above the ground. Its potential energy in the new position is
(a) 490 J
(b) 50 J
(c) 100 J
(d) 300 J

Answer

Answer: (a) 490 J

Class 11 Physics Chapter 6 MCQ With Answers Question 12.
A man of 60 kg weight is standing at rest on a platform. He jumps up vertically a distance of 1 m and the platform at the same instant moves horizontally forward with the result that the man lands 1 meter behind the point on the platfrom from where the took the jump the total work done by the man at the instant he lands is
(a) 300 J
(b) 150 J
(c) 600 J
(d) zero

Answer

Answer: (c) 600 J

Chapter 6 Physics Class 11 MCQs Question 13.
A marble moving with some velocity collides perfectly elastically head-on with another marble at rest having mass 1.5 times the mass of the colliding marble. The percentage of kinetic energy by the colliding marble after the collision is
(a) 4
(b) 25
(c) 44
(d) 67

Answer

Answer: (a) 4

Work Energy Power Class 11 MCQ Question 14.
A body of mass 100 kg falls from a height of 10 m. Its increase in kinetic energy is
(a) 9800 J
(b) 1000 J
(c) 5000 J
(d) 3000 J

Answer

Answer: (a) 9800 J

Work Power Energy MCQ Class 11 Question 15.
An isolated particle of mass m is moving in a horizontal plane (x-y), along the x-axis, at a certain height above the ground. It suddenly explodes into two fragments of masses m/4 and 3m/4 . An instant later, the smaller fragment is at y = + 15 cm. The larger fragment at this instant is at
(a) y = -5 cm
(b) y = +20 cm
(c) y = +5 cm
(d) y = -20 cm

Answer

Answer: (a) y = -5 cm

Question 16.
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
(a) 7.2 J
(b) 3.6 J
(c) 120 J
(d) 1200 J

Answer

Answer: (b) 3.6 J

Question 17.
A body of mass 20 kg is initially at a height of 3 m above the ground. It is lifted to a height of 2 m from that position. Its increase in potential energy is
(a) 100 J
(b) 392 J
(c) 60 J
(d) -100 J

Answer

Answer: (b) 392 J

Question 18.
A body of mass 10 kg is moved parallel to the ground, through a distance of 2 m. The work done against gravitational force is
(a) 196 J
(b) -196 J
(c) 20 J
(d) zero

Answer

Answer: (d) zero

Question 19.
A ball is dropped from a height of 1 m. If the coeffcient of restitution between the surface and ball is 0.6, the ball rebounds to a height of
(a) 0.6 m
(b) 0.4 m
(c) 1 m
(d) 0.36 m

Answer

Answer: (d) 0.36 m

Question 20.
An electric heater of rating 1000 W is used for 5 hrs per day for 20 days. The electrical energy utilised is
(a) 150 kWh
(b) 200 kWh
(c) 100 kWh
(d) 300 kWh

Answer

Answer: (c) 100 kWh

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 6 Work, Energy and Power with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Work, Energy and Power MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 11 Physics MCQ:

MCQ Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants with Answers

Transportation in Animals and Plants Class 7 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Transportation in Animals and Plants Class 7 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/

You can refer to NCERT Solutions for Class 7 Science Chapter 11 Transportation in Animals and Plants to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 7 Science Chapter 11 MCQ With Answers

Science Class 7 Chapter 11 MCQs On Transportation in Animals and Plants

Choose the correct answer:

Class 7 Science Chapter 11 MCQ Question 1.
Which of the following is the main circulatory fluid in our body ?
(a) Plasma
(b) Lymph
(c) Blood
(d) None of these

Answer

Answer: (c) Blood

Transportation In Animals And Plants Class 7 MCQ With Answers Question 2.
Which one of the following contains haemoglobin?
(a) RBC
(b) WBC
(c) Platelets
(d) None of these

Answer

Answer: (a) RBC

Transportation In Plants And Animals Class 7 MCQ Question 3.
What is the function of WBCs?
(a) Transport of oxygen
(b) Fight against germs
(c) Involved in blood clotting
(d) All of these

Answer

Answer: (b) Fight against germs

Transportation In Animals And Plants MCQ Question 4.
Blood platelets help in
(a) formation of urine
(b) excretion of urine
(c) sweating
(d) blood clotting

Answer

Answer: (d) blood clotting

Class 7 Science Ch 11 MCQ Question 5.
The muscular tube through which stored urine is passed out of the body is called:
(a) kidney
(b) ureter
(c) urethra
(d) urinary bladder

Answer

Answer: (c) urethra

MCQ Questions For Class 7 Science Chapter 11 Question 6.
They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue

Answer

Answer: (d) Phloem tissue

Ch 11 Science Class 7 MCQ Question 7.
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in:
(a) veins
(b) arteries
(c) heart
(d) capillaries

Answer

Answer: (d) capillaries

Class 7 Transportation In Plants And Animals MCQ Question 8.
In which of the following parts of human body are sweat glands absent?
(a) Scalp
(b) Armpits
(c) Lips
(d) Palms

Answer

Answer: (c) Lips

Class 7 Chapter 11 Science MCQ Question 9.
In a tall tree, which force is responsible for pulling water and minerals from the soil?
(a) Gravitational force
(b) Transportation force
(c) Suction force
(d) Conduction force

Answer

Answer: (c) Suction force

Class 7 Ch 11 Science MCQ Question 10.
Aquatic animals like fish excrete their wastes in gaseous form as
(a) Oxygen
(b) Hydrogen
(c) Ammonia
(d) Nitrogen

Answer

Answer: (c) Ammonia

Match the following:

Column A Column B
(i) Ammonia (a) Food
(ii) Urea (b) Carbon dioxide rich blood
(iii) Uric acid (c) Water and salts
(iv) Vein (d) Carry oxygen
(v) Artery (e) Aquatic animals like fish
(vi) Xylem (f) Fight against germs
(vii) Phloem (g) Blood clotting
(viii) Sweat (h) Absorb water
(ix) Root hair (i) Humans
(x) Platelets (j) Oxygen rich blood
(xi) RBCs (k) Water and minerals
(xii) WBCs (l) Birds, snakes, lizards
Answer

Answer:

Column A Column B
(i) Ammonia (e) Aquatic animals like fish
(ii) Urea (i) Humans
(iii) Uric acid (l) Birds, snakes, lizards
(iv) Vein (b) Carbon dioxide rich blood
(v) Artery (j) Oxygen rich blood
(vi) Xylem (k) Water and minerals
(vii) Phloem (a) Food
(viii) Sweat (c) Water and salts
(ix) Root hair (h) Absorb water
(x) Platelets (g) Blood clotting
(xi) RBCs (d) Carry oxygen
(xii) WBCs (f) Fight against germs

Fill in the blanks:

1. Blood is the fluid which flows in the ………………..

Answer

Answer: blood vessels

2. ……………….. binds with oxygen and transports it.

Answer

Answer: Haemoglobin

3. ……………….. fight against germs.

Answer

Answer: WBCs

4. The heart has ……………….. chambers.

Answer

Answer: four

5. A doctor uses the ……………….. to feel the heart beat.

Answer

Answer: stethoscope

6. ……………….. discovered the circulation of blood.

Answer

Answer: William Harvey

7. Filtering the blood periodically through an artificial kidney is called ………………..

Answer

Answer: dialysis

8. Plants absorb water and minerals by the ………………..

Answer

Answer: roots

Choose the true and false statements from the following:

1. Blood carries carbon dioxide from the body parts to the lungs.

Answer

Answer: True

2. White blood cells are involved in the clotting of blood.

Answer

Answer: False

3. There are valves present in veins.

Answer

Answer: True

4. Heart acts as a pump for the transport of blood.

Answer

Answer: True

5. Arteries have thin walls while veins have thick walls.

Answer

Answer: False

6. Human heart has two chambers, an atrium and a ventricle.

Answer

Answer: False

7. Partition between the chambers of heart avoid mixing up of blood rich in oxygen with the blood rich in carbon dioxide.

Answer

Answer: True

8. Stethoscope is a device to amplify the sound of the heart.

Answer

Answer: True

9. Rhythmic beating of the various chambers of the heart maintain circulation of blood to the different parts of the body.

Answer

Answer: True

10. When blood reaches the two kidneys, it contains only harmful substances.

Answer

Answer: False

11. Birds, lizards and snakes excrete a semi-solid white coloured compound (uric acid).

Answer

Answer: True

12. Transpiration provides cooling to the plant.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants with Answers Pdf free download will help you. If you have any queries regarding Transportation in Animals and Plants CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 7 Science MCQ:

MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers

Atoms and Molecules Class 9 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Atoms and Molecules Class 9 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-9-science-with-answers/

You can refer to NCERT Solutions for Class 9 Science Chapter 3 Atoms and Molecules to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 9 Science Chemistry Chapter 3 MCQ With Answers

Chemistry Class 9 Chapter 3 MCQs On Atoms and Molecules

Atoms And Molecules Class 9 MCQ Question 1.
The chemical symbol for nitrogen gas is
(a) Ni
(b) N2
(c) N+
(d) N

Answer

Answer: (b) N2

Atoms And Molecules Class 9 MCQ With Answers Question 2.
The chemical symbol for sodium is
(a) So
(b) Sd
(c) NA
(d) Na

Answer

Answer: (d) Na

Converting grams to moles is super easy if you use mass to moles calculator above.

Class 9 Science Chapter 3 MCQ Question 3.
Which of the following would weigh the highest?
(a) 0.2 mole of sucrose (C12H22O11)
(b) 2 moles of CO2
(c) 2 moles of CaCO3
(d) 10 moles of H2O

Answer

Answer: (c) 2 moles of CaCO3

Class 9 Atoms And Molecules MCQ Question 4.
Which of the following has maximum number of atoms?
(a) 18 g of H2O
(b) 18 g of O2
(c) 18 g of CO2
(d) 18 g of CO4

Answer

Answer: (d) 18 g of CO4

Which of the following has maximum number of atoms?

Atom And Molecules Class 9 MCQ Question 5.
Which of the following correctly represents 360 g of water?
(i) 2 moles of H2O
(ii) 20 moles of water
(iii) 6.022 × 1023 molecules of water
(iv) 1.2044 × 1025 molecules of water
(a) (i)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)

Answer

Answer: (d) (ii) and (iv)

Heat & Mass Transfer MCQ with detailed explanation for interview, entrance and competitive exams.

MCQ On Atoms And Molecules Class 9 Question 6.
3.42 g of sucrose are dissolved in 18 g of water in a beaker. The number of oxygen atoms in the solution are
(a) 6.68 × 1023
(b) 6.09 × 1022
(c) 6.022 × 1023
(d) 6.022 × 102321

Answer

Answer: (a) 6.68 × 1023

MCQ Of Atoms And Molecules Of Class 9 Question 7.
A change in the physical state can be brought about
(a) only when energy is given to the system
(b) only when energy is taken out from the system
(c) when energy is either given to, or taken out from the system
(d) without any energy change

Answer

Answer: (c) when energy is either given to, or taken out from the system

Class 9 Science Ch 3 MCQ Question 8.
The relative molecular mass of Na2S2O3.5H2O is
(a) 250 amu
(b) 250 g
(c) 248 amu
(d) 248 g

Answer

Answer: (c) 248 amu

MCQ Atoms And Molecules Class 9 Question 9.
Which of the following has maximum number of atom?
(a) 18 g H2O
(b) 18 g of O2
(c) 18 g of CO2
(d) 18 g of CH4

Answer

Answer: (d) 18 g of CH4

Ch 3 Science Class 9 MCQ Question 10.
Percentage of calcium in calcium carbonate is
(a) 40
(b) 30
(c) 48
(d) 36

Answer

Answer: (a) 40

Atoms And Molecules MCQ Class 9 Question 11.
Which has maximum number of molecules?
(a) 1 g of CO2
(b) 1 g of N2
(c) 1 g of H2
(d 1 g of CH4

Answer

Answer: (c) 1 g of H2

Class 9 Chemistry Chapter 3 MCQ Question 12.
What mass of carbon dioxide (CO2) will contain 3.011 × 1023 molecules?
(a) 11.0 g
(b) 22.0 g
(c) 4.4 g
(d) 44.0 g

Answer

Answer: (b) 22.0 g

Class 9 Chapter 3 Science MCQ Question 13.
The value of Avogadro’s constant is:
(a) 6.0 × 1024
(b) 6.01 × 1022
(c) 6.022 × 1023
(d) 6.022 × 10-23

Answer

Answer: (c) 6.022 × 1023

Class 9 Science Chapter 3 MCQ With Answers Question 14.
How many times an atom of sulphur is heavier than an atom of carbon?
(a) 32 times
(b) 12 times
(c) 8/3 times
(d) 12/32 times

Answer

Answer: (c) 8/3 times

Chapter 3 Science Class 9 MCQ Question 15.
The number of oxygen atoms in 4.4 g of CO2 is approx.
(a) 6 × 1022
(b) 6
(c) 12 × 1023
(d) 1.2 × 1023

Answer

Answer: (d) 1.2 × 1023

Question 16.
Which of the following represents 12 u?
(a) Mass of 1 hydrogen atom
(b) Mass of C-12 atom
(c) Mass of 0-16 atom
(d) 1/12th of mass of C-12 atom.

Answer

Answer: (d) 1/12th of mass of C-12 atom.

Question 17.
Which of the following would weigh the highest?
(a) 0.2 mole of sucrose (C12H22O11)
(b) 2 moles of CO2
(c) 2 moles of CaCO3
(d) 10 moles of H2O

Answer

Answer: (c) 2 moles of CaCO3

Question 18.
The molecule having an atomicity of 4 is:
(a) Sulphate molecule
(b) Ozone molecule
(c) Phosphorus molecule
(d) Methane molecule

Answer

Answer: (c) Phosphorus molecule

The molecule having an atomicity of 4 is:

Fill in the blanks

1. In a chemical reaction, the sum of the masses of the reactants and products remain unchanged. This is called ……………

Answer

Answer: Law of Conservation of Mass

2. A group of atoms carrying a fixed charge on them is called …………..

Answer

Answer: Polyatomic ion

3. The formula unit mass of Ca3(PO4)2 is ……………

Answer

Answer: (3 × atomic mass of calcium) + (2 × atomic mass of phosphorus) + (8 × atomic mass of oxygen) = 310

4. Formula of sodium carbonate is ………….. and that of ammonium sulphate is ……………

Answer

Answer: Na2CO3 (NH4)2 SO4

5. Elements are represented by symbols and molecules by …………….

Answer

Answer: Chemical formula

6. The combining power of an element is known as its …………….

Answer

Answer: Valency

7. An atom or a group of atoms which carries positive or negative charge is called an ……………..

Answer

Answer: ion

8. The volume occupied by one mole of a gas under standard conditions of temperature and pressure is called ……………..

Answer

Answer: molar volume

9. The number of atoms present in one molecule of the substance is called its ……………

Answer

Answer: atomicity

10. Atomicity of H2SO4 is …………….

Answer

Answer: 7

Match the following columns
1.

Column I Column II
(a) 28 g of He (i) 58.54
(b) 0.5 mole of O2 (ii) 7 mol
(c) Molecular mass of common salt (iii) 60 g
(d) 1.5 mole of Ca (iv) 16 g
Answer

Answer:

Column I Column II
(a) 28 g of He (ii) 7 mol
(b) 0.5 mole of O2 (iv) 16 g
(c) Molecular mass of common salt (i) 58.54
(d) 1.5 mole of Ca (iii) 60 g

2.

Column I Column II
(a) Sodium carbonate (i) NaHCO3
(b) Sodium bicarbonate (ii) Na3PO4
(c) Sodium sulphate (iii) Na2CO3
(d) Sodium phosphate (iv) Na2SO4
Answer

Answer:

Column I Column II
(a) Sodium carbonate (iii) Na2CO3
(b) Sodium bicarbonate (i) NaHCO3
(c) Sodium sulphate (iv) Na2SO4
(d) Sodium phosphate (ii) Na3PO4

3.

Column I Column II
(a) Silver (i) Na
(b) Sodium (ii) Ag
(c) Gold (iii) K
(d) Potassium (iv) Au
Answer

Answer:

Column I Column II
(a) Silver (ii) Ag
(b) Sodium (i) Na
(c) Gold (iv) Au
(d) Potassium (iii) K

Answer the questions in one word:

1. Smallest particle which cannot be divided into simpler parts.

Answer

Answer: Parmanu (Atom)

2. Which experiment led to the discovery of the atomic nucleus?

Answer

Answer: Rutherford’s alpha particle scattering experiment

3. What is the mass of a proton and a neutron?

Answer

Answer: 1 amu

4. What do the species \(_{1}^{3}\)A and \(_{2}^{3}\)B represent?

Answer

Answer: Isobars

5. What is the formula of hydrogen carbonate?

Answer

Answer: HCO3–

6. What is the chemical formula of aluminium sulphate?

Answer

Answer: Al2(SO4)3

7. What is the formula unit mass of CaCl2?

Answer

Answer: 111 u

8. What is the mass of 5 moles H2O?

Answer

Answer: 90 g

1. Complete the following crossword puzzle by using the name of the chemical elements. Use the data given in table mentioned below.

MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers

Answer

Answer:
Down:
2. Gold
3. Iron
5. Phosphorus
7. Hydrogen

Across:
1. Silver
4. Copper
6. Mercury
8. Lead

We hope the given NCERT MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers Pdf free download will help you. If you have any queries regarding Atoms and Molecules CBSE Class 9 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

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MCQ Questions for Class 6 Science Chapter 9 The Living Organisms and Their Surroundings with Answers

Living Organisms and Their Surroundings Class 6 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 6 Science Chapter 9 The Living Organisms and Their Surroundings with Answers Pdf free download. MCQ Questions for Class 6 Science with Answers were prepared based on the latest exam pattern. We have provided The Living Organisms and Their Surroundings Class 6 Science MCQs Questions with Answers to help students understand the concept very well.

You can refer to NCERT Solutions for Class 6 Science Chapter 9 The Living Organisms and Their Surroundings to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 6 Science Chapter 9 MCQ With Answers

Science Class 6 Chapter 9 MCQs On Living Organisms and Their Surroundings

Choose the correct option in the following questions:

Class 6 Science Chapter 9 MCQ Question 1.
Which one of the following statements is correct?
(a) Several kinds of plants and animals may share the same habitat.
(b) All the animals and plants in a habitat are adopted to it.
(c) Both the statements are correct.
(d) None of these is correct.

Answer

Answer: (c) Both the statements are correct.
Explanation:
Several kinds of plants and animals may share the same habitat and adopt it.

Living Organisms And Their Surroundings Class 6 MCQ Question 2.
Animals and plants have certain features which make them to survive in a particular habitat. This is called
(a) adaptation
(b) speciation
(c) specialisation
(d) evolution

Answer

Answer: (a) adaptation
Explanation:
Presence of features which enable plants and animals to live in a habitat is called adaptation.

MCQ Questions For Class 6 Science Chapter 9 Question 3.
Which is a biotic component of environment?
(a) Plants
(b) Animals
(c) Microorganisms
(d) All of these

Answer

Answer: (d) All of these
Explanation:
All of these constitute biotic components.

Class 6 Science Ch 9 MCQ Question 4.
Which is not an abiotic component of environment?
(a) Soil
(b) Bacteria
(c) Water
(d) Air

Answer

Answer: (b) Bacteria
Explanation:
Bacteria are living beings.

Class 6 Science Chapter 9 MCQ With Answers Question 5.
Which is an example of an animal found in mountain region?
(a) Leopard
(b) Yak
(c) Mountain goat
(d) All of these

Answer

Answer: (d) All of these
Explanation:
Leopard, mountain goat and yak are found in mountain region.

Ncert Class 6 Science Chapter 9 MCQ Question 6.
What are the characteristics of a desert plant?
(a) No leaves or very small leaves
(b) Spines
(c) Deep roots
(d) All of these

Answer

Answer: (d) All of these
Explanation:
All of these characters help the plants to survive in the scarcity of water.

Living Organisms And Their Surroundings Class 6 MCQ With Answers Question 7.
Respiration in aquatic animals occurs by
(a) lungs
(b) gills
(c) nostrils
(d) legs

Answer

Answer: (b) gills
Explanation:
Aquatic animals use gills for respiration.

Class 6 Chapter 9 Science MCQ Question 8.
Which is an aquatic adaptation?
(a) Streamlined body
(b) Light and hollow bones
(c) Hair on body
(d) Gills

Answer

Answer: (a) Streamlined body
Explanation:
Streamlined body helps them to swim.

MCQ On Living Organisms And Their Surroundings Question 9.
Bending of a stem towards sunlight is called
(a) geotropism
(b) phototropism
(c) hydrotropism
(d) nasticism

Answer

Answer: (b) phototropism
Explanation:
Bending of stem towards sunlight is called phototropism.

The Living Organisms And Their Surroundings Class 6 MCQ Question 10.
Sunken stomata are present in
(a) hydrophytes
(b) epiphytes
(c) xerophytes
(d) mesophytes

Answer

Answer: (c) xerophytes
Explanation:
Sunken stomata are found in xerophytes plants, such plants grow under poor water condition.

Give one word for the following sentences:

  1. Anything that has mass and occupies space.
  2. The process of taking food by organisms.
  3. The process of getting rid of wastes.
  4. The process of removal of wastes in plants.
  5. The factors like food, water, light, temperature to which organisms respond.
  6. Production of new organisms of own kind.
  7. Increase in the size along with mass using energy.
Answer

Answer:

  1. matter
  2. nutrition
  3. excretion
  4. secretion
  5. stimuli
  6. reproduction
  7. growth

Match the following items given in Column A with that in Column B:

Column A Column B
(a) Bird Nocturnal
(b) Cat (ii) Have no eyes
(c) Hydrilla (iii) Volant adaptation
(d) Whale (iv) Terrestrial
(e) Cactus (v) Found on mountain
(f) Snow bear (vi) Aquatic plant
(g) Camel (vii) Desert plant
(h) Proteus (viii) Desert adaptation
(i) Amblyopsis (ix) Aquatic adaptation
(j) Cockroach (x) Reduced eyes
Answer

Answer:

Column A Column B
(a) Bird (iii) Volant adaptation
(b) Cat (iv) Terrestrial
(c) Hydrilla (vi) Aquatic plant
(d) Whale (ix) Aquatic adaptation
(e) Cactus (vii) Desert plant
(f) Snow bear (v) Found on mountain
(g) Camel (viii) Desert adaptation
(h) Proteus (x) Reduced eyes
(i) Amblyopsis (ii) Have no eyes
(j) Cockroach (i) Nocturnal

Fill in the blanks with appropriate words:

1. The place where organisms live is called …………… .

Answer

Answer: habitat

2. The plants and animals that live in water, it is called ……………. habitat.

Answer

Answer: aquatic

3. Plants and animals that live on land, it is called …………….. habitat.

Answer

Answer: terrestrial

4. ……………………… is a medium in aquatic habitat.

Answer

Answer: Water

5. …………………….. is a medium in terrestrial habitat.

Answer

Answer: Air

6. Soil, water and air are ……………… components of a habitat.

Answer

Answer: abiotic

7. Plants put in shade for a longer time become …………… .

Answer

Answer: delicate and weak

8. Animals living in …………………… have very much reduced eyes.

Answer

Answer: caves and burrows

9. Plants growing in hot and dry places are called ………………. .

Answer

Answer: xerophytes

10. Desert plants have ……………. root system.

Answer

Answer: long and extensive

11. Forests and trees act as ………………….

Answer

Answer: wind-brakes

12. Animals depend on ………………. for their food.

Answer

Answer: plants

13. Matter is anything that has ………………. and occupies …………….. .

Answer

Answer: mass, space

14. The process of respiration involves ……………….. gases.

Answer

Answer: exchange

15. Some objects are categorised as livings while others as ……………. .

Answer

Answer: non-living

State whether the statements given helow are True or False:

1. Habitat is a special environment of an organism.

Answer

Answer: True

2. Succulent is an adaptation in mesophytes.

Answer

Answer: False

3. All birds do not have feathers.

Answer

Answer: False

4. Fin is for aquatic life in fish.

Answer

Answer: True

5. The plants and animals cannot survive without air.

Answer

Answer: True

6. In all the fish, body tapers at both ends.

Answer

Answer: True

7. Cactus plants have thick and fleshy stem to store water.

Answer

Answer: True

8. Almost all types of plants occur in the sea.

Answer

Answer: True

9. All living organisms need water for their survival.

Answer

Answer: True

10. Leaves in aquatic plants are reduced in size to minimize their evaporating surface.

Answer

Answer: False

11. The flower of surajmukhi (sunflower) always faces the sun.

Answer

Answer: True

12. Animals live in isolation and are independent.

Answer

Answer: False

13. Microorganisms are a part of abiotic components.

Answer

Answer: False

14. Habitat includes both living and non-living things.

Answer

Answer: True

15. Mountain is a special terrestrial habitat where temperature is very low.

Answer

Answer: True

16. Large trees are abundant at higher altitudes.

Answer

Answer: False

17. Hilly trees do not have flowers.

Answer

Answer: False

18. All objects around us are made up of matter.

Answer

Answer: True

19. All objects have similar shapes and sizes.

Answer

Answer: False

20. Non-living objects do not carry out respiration.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 6 Science Chapter 9 The Living Organisms and Their Surroundings with Answers Pdf free download will help you. If you have any queries regarding The Living Organisms and Their Surroundings CBSE Class 6 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

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MCQ Questions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate with Answers

Weather, Climate and Adaptations of Animals to Climate Class 7 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Weather, Climate and Adaptations of Animals to Climate Class 7 Science MCQs Questions with Answers to help students understand the concept very well.

You can refer to NCERT Solutions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/

Class 7 Science Chapter 7 MCQ With Answers

Science Class 7 Chapter 7 MCQs On Weather, Climate and Adaptations of Animals to Climate

Choose the correct answer:

Class 7 Science Chapter 7 MCQ Question 1.
Which among the following is generally not predicted in a daily weather report?
(a) Temperature
(b) Pressure
(c) Humidity
(d) Rainfall

Answer

Answer: (b) Pressure

Weather Climate And Adaptation Class 7 MCQ Question 2.
Weather changes
(a) week after week
(b) day after day
(c) within a short period
(d) in any of the above time period

Answer

Answer: (d) in any of the above time period

MCQ Questions For Class 7 Science Chapter 7 Question 3.
Rainfall is measured by
(a) rain gauge
(b) water level increase in ponds
(c) water level increase in water table
(d) none of these

Answer

Answer: (a) rain gauge

Class 7 Science Ch 7 MCQ Question 4.
Given below are some adaptive features of animals:
(i) Layer of fat under the skin
(ii) Long, curved and sharp claws
(iii) Slippery body
(iv) Thick white fur
Which of them are the adaptive features of a polar bear?
(a) (i) only
(b) (i) and (ii) only
(c) (i), (ii) and (iii) only
(d) (i), (ii) and (iv) only

Answer

Answer: (d) (i), (ii) and (iv) only

Class 7 Chapter 7 Science MCQ Question 5.
Which of the following statement is incorrect for penguins?
(a) They huddle together
(b) They cannot swim
(c) They have webbed feet
(d) They have streamlined body

Answer

Answer: (b) They cannot swim

Class 7th Science Chapter 7 MCQ Question 6.
Read the following environmental conditions of tropical rain forests:
(i) Hot and humid climate
(ii) Unequal lengths of day and night
(iii) Abundant rain fall
(iv) Abundant light and moisture
Identify the conditions from the above list that are responsible for the presence of large number of plants and animals in tropical rain forests.
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i), (iii) and (iv)
(d) (ii) and (iv)

Answer

Answer: (c) (i), (iii) and (iv)

Science Class 7 Chapter 7 MCQ Question 7.
The coldest region on earth is the:
(a) polar region
(b) tropical region
(c) temperate region
(d) coastal region

Answer

Answer: (a) polar region

Ch 7 Science Class 7 MCQ Question 8.
Choose the odd one from the following options:
(a) Thick layer of fat under the skin
(b) White fur
(c) Long grasping tail
(d) Wide and large feet with sharp claws

Answer

Answer: (c) Long grasping tail

Weather, Climate And Adaptation Class 7 MCQ Question 9.
Which of the following is not an adaptive feature in polar bear?
(a) White fur
(b) Strong sense of smell
(c) Long curved and sharp claws
(d) Long tail

Answer

Answer: (d) Long tail

Class 7 Ch 7 Science MCQ Question 10.
Which is the characteristic feature of tropical rainforests?
(a) Hot and humid climate
(b) Enormous number and variety of animals
(c) Competition for food and shelter
(d) All of these

Answer

Answer: (d) All of these

Match the following:

Column A Column B
(i) Polar bear (a) Trunk and tusks
(ii) Penguins (b) Long, large beak
(iii) Birds (c) Long tail
(iv) Red-eyed frog (d) Silver-white mane
(v) Toucan (e) Sticky pads on its feet
(vi) Lion-tailed macaque (f) Long curved and strong claws
(vii) Elephant (g) Migrate to warmer region
(viii) New world monkey (h) Feet have web
Answer

Answer:

Column A Column B
(i) Polar bear (f) Long curved and strong claws
(ii) Penguins (h) Feet have web
(iii) Birds (g) Migrate to warmer region
(iv) Red-eyed frog (e) Sticky pads on its feet
(v) Toucan (b) Long, large beak
(vi) Lion-tailed macaque (d) Silver-white mane
(vii) Elephant (a) Trunk and tusks
(viii) New world monkey (c) Long tail

Fill in the blanks:

1. The maximum temperature of the day occurs generally in the ………………….

Answer

Answer: afternoon

2. In winters the temperature of polar regions can be as low as ………………….

Answer

Answer: 37°C

3. …………………. have white fur. It protects them from predators.

Answer

Answer: Polar bears

4. Like polar bears …………………. are also good swimmers.

Answer

Answer: penguins

5. …………………. must remain warm to survive. They migrate to …………………. regions when winter sets in.

Answer

Answer: Birds,warmer

6. Red-eyed frog lives on ………………….

Answer

Answer: trees

7. …………………. possesses a long, large beak.

Answer

Answer: Toucan

8. Elephant uses its …………………. as a nose.

Answer

Answer: trunk

Choose the true and false statements from the following:

1. Weather can vary over very short periods of time.

Answer

Answer: True

2. In Rajasthan typical desert climate is found.

Answer

Answer: True

3. All the changes in the weather are. driven by the moon.

Answer

Answer: False

4. The polar regions are very cold throughout the year.

Answer

Answer: True

5. A layer of fat under skin is an adaptation against extremely hot climate.

Answer

Answer: False

6. Migration is a mean to escape the harsh, cold conditions.

Answer

Answer: True

7. Tusks of the elephant are the modified teeth.

Answer

Answer: True

8. Lion-tailed macaque feeds mainly on fruits.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate with Answers Pdf free download will help you. If you have any queries regarding Weather, Climate and Adaptations of Animals to Climate CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 7 Science MCQ: