Amines Class 12 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Amines Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 12 Chemistry Chapter 13 MCQ With Answers

Chemistry Class 12 Chapter 13 MCQs On Amines

Amines MCQ Class 12 Chapter 13 Question 1.
Nitrogen atom of amino group is ………. hybridised.
(a) sp
(b) sp²
(c) sp³
(d) sp³d

Answer

Answer: (c) sp³

Amines MCQ Pdf Download Class 12 Chapter 13 Question 2.
Which of the following should be most volatile?
I. CH₃CH₂CH₂NH₂
II. (CH₃)₃N

IV. CH₃CH₂CH₃
(a) II
(b) IV
(c) I
(d) III

Answer

Answer: (b) IV

MCQ On Amines Chapter 13 Question 3.
C₃H₈N cannot represent
(a) 1° ammine
(b) 2° ammine
(c) 3° ammine
(d) quartemary ammonium salt

Answer

Answer: (d) quartemary ammonium salt

MCQ On Amines Class 12 Chapter 13 Question 4.
Identify the correct IUPAC name
(a) (CH₃CH₂)₂NCH₃ = N-Ethyl-N-methylethanamine
(b) (CH₃)₃CNH₂ = 2-methylpropan-2-amine
(c) CH₃NHCH (CH₃)₂ = N-Methylpropan-2-amine
(d) (CH₃)₂CHNH₂ = 2, 2-Dimethyl-N-propanamine

Answer

Answer: (a) (CH₃CH₂)₂NCH₃ = N-Ethyl-N-methylethanamine

Amines Class 12 MCQ Chapter 13 Question 5.
The most convenient method to prepare primary (i Amine) amine containing one carbon atom less is
(a) Gabriel phthalmidie synthesis
(b) Reductive amination of aldehydes
(c) Hofmann bromamide reaction
(d) Reduction of isonitriles

Answer

Answer: (c) Hofmann bromamide reaction

Amines MCQ Pdf Class 12 Chapter 13 Question 6.
Identify the correct pathway to convert propanoic acid to ethylamine. The reagent represented by A, B and C are

Answer

Answer: (b)

MCQ Of Amines Class 12 Chapter 13 Question 7.
When excess of ethyl iodide is treated with ammonia, the product is
(a) ethylamine
(b) diethylamine
(c) triethylamine
(d) tetrathylammonium iodide

Answer

Answer: (d) tetrathylammonium iodide

Amines Class 12 MCQ Pdf Chapter 13 Question 8.
Amides may be converted into amines by a reaction named after
(a) Hofmann Bromide
(b) Claisen
(c) Perkin
(d) Kekule

Answer

Answer: (a) Hofmann Bromide

MCQ On Amines Pdf Chapter 13 Class 12 Question 9.
Reduction of CH₃CH₂NC with hydrogen in presence of Ni or Pt as catalvst gives
(a) CH₃CH₂NH₂
(b) CH₃CH₂NHCH₃
(c) CH₃CH₂NHCH₂CH₃
(d) (CH₃)₃N

Answer

Answer: (b) CH₃CH₂NHCH₃

Aniline Is In Nature MCQ Chapter 13 Class 12 Question 10.
Secondary amines can be prepared by
(a) reduction of nitro compounds
(b) oxidation of N-substituted amides
(c) reduction of isonitriles
(d) reduction of nitriles

Answer

Answer: (c) reduction of isonitriles

Amines MCQ Questions Chapter 13 Class 12 Question 11.
Which of the following amides will give ethylamine on reaction with sodium hypobromide?
(a) Butanamide
(b) Propanamide
(c) Acetamide
(d)Benzamide

Answer

Answer: (b) Propanamide

MCQ On Aromatic Amines Chapter 13 Class 12 Question 12.
Benzoic acid is treated with SOCl₂ and the product (X) formed is reacted with ammonia to give (Y). (Y) on reaction with Br₂ and KOH gives (Z). (Z) in the reaction is
(a) aniline
(b) chlorobenzene
(c) benzamide
(d) benzoyl chloride

Answer

Answer: (a) aniline

MCQ Questions On Amines Chapter 13 Class 12 Question 13.
Which one of the following reducing agents is likely to be most effective in bringing about the following change?

(a) H₂-Ni
(b) NaBH₄
(c) LiAlH₄ ether
(d) Na-AIcohol

Answer

Answer: (c) LiAlH₄ ether

MCQ On Basicity Of Amines Chapter 13 Class 12 Question 14.
Amine that cannot be prepared by Gabricl-Phthalmidie synthesis is
(a) aniline
(b) benzyl amine
(c) methyl amine
(d) iso-butylamine

Answer

Answer: (a) aniline

MCQs Based On Amines Chapter 13 Class 12 Question 15.
What is the end product in the following sequence of reactions?

(a) Aniline
(b) Phenol
(c) Benzene
(d) Benzenediazxonium chloride

Answer

Answer: (a) Aniline

Question 16.
Tertiary amines have lowest boiling points amongst isomeric amines because
(a) they have highest molecular mass
(b) they do not form hydrogen bonds
(c) they are more polar in nature
(d) they are most basic in nature

Answer

Answer: (b) they do not form hydrogen bonds

Question 17.
Which of the following amines will give carbylatnine reaction?
(a) (C₂H₅)₃N
(b) (C₂H₅)₂NH
(c) C₂H₅NH₂
(d) C₃H₇NHC₂H₃5

Answer

Answer: (c) C₂H₅NH₂

Question 18.

in the above reaction is
(a) CH₃CH₂CH₂NHCOCH₃
(b) CH₃CH₂CH₂NH₂
(c) CH₃CH₂CH₂CONHCH₃
(d) CH₃CH₂CH₂CONHCOCH₃

Answer

Answer: (a) CH₃CH₂CH₂NHCOCH₃

Question 19.
The end product Z of the reaction

(a) propanenitrile
(b) triethylamine
(c) diethylamine
(d) propylamine

Answer

Answer: (a) propanenitrile

Question 20.
Primary and secondary amines are distinguished by
(a) Br₂/ROH
(b) HClO
(c) HNO₂
(d) NH₃

Answer

Answer: (c) HNO₂

Question 21.
Arrange the following compounds in increasing order of basicity:
CH₃NH₂, (CH₃)₂ NH, NH₃, C₆H₅NH₂
(a) C₆H₅NH₂ < NH₃ < (CH₃)₂NH < CH₃NH₂
(b) CH₃NH₂ < (CH₃)₂NH < NH₃ < C₆H₅NH₂
(c) C₆H₅NH₂ <NH₃ < CH₃NH₂<(CH₃)₂NH
(d) (CH₃)₂NH < CH₃NH₂ <NH₃ < C₆H₅NH₂

Answer

Answer: (c) C₆H₅NH₂ <NH₃ < CH₃NH₂<(CH₃)₂NH

Question 22.
Which of the following species are involved in the carbvlamine test?
(i) RNC
(ii) CHCl₃
(iii) COCl₂
(iv) NaNO₂ + HCl
(a) (i) and (iv)
(b) (i) and (ii)
(c) (ii) and (iv)
(d) (ii) and (iii)

Answer

Answer: (b) (i) and (ii)

Question 23.
Identify ‘Z’ in the sequence?

(a) C₆H₅CN
(b) C₆H₅CONH₂
(c) C₆H₅COOH
(d) C₆H₅CH₂NH₂

Answer

Answer: (c) C₆H₅COOH

Question 24.
Which of the following from isocyanide on reaction with CHCl and KOH?
(a) C₆H₅NHCH₃
(b) CH₃C₆H₄NH₂
(c) C₆H₅NHC₄H₉.
(d) C₆H₅N (C₂H₅)₂

Answer

Answer: (b) CH₃C₆H₄NH₂

Question 25.
Which of the following is used as Hinsberg’s reagent?
(a) C₆H₅SO₂Cl
(b) C₆H₅SO₃H
(c) C₆H₅NHCH₃
(d) C₆H₅COCH₃

Answer

Answer: (a) C₆H₅SO₂Cl

Question 26.
Electrophilic substitution of aniline with bromine water at room temperature gives
(a) 2-bromoaniline
(b) 3-bromoaniline
(c) 2, 4, 6-tribromoaniline
(d) 3, 5, 6-tribromoaniline

Answer

Answer: (c) 2, 4, 6-tribromoaniline

Question 27.
Among the compounds C₃H₇NH₂, CH₃NH₂, C₂H₅NH₂, and C₆H₅NH₂. Which is the least basic compound?
(a) CH₃NH₂
(b) C₂H₅NH₂
(c) C₃H₇NH₂
(d) C₆H₅NH₂

Answer

Answer: (d) C₆H₅NH₂

Question 28.
Anilinium hydrogensulphate on heating with sulphuric acid at 453-473 K produces
(a) sulphanilic acia
(b) benzenesulphonic acid
(c) aniline
(d) anthranilic acid

Answer

Answer: (a) sulphanilic acia

Question 29.

Product would be

Answer

Answer: (c)

Question 30.
Which of the following can exist as zwitter ion?
(a) p-Aminoacetophenone
(b) Sulphanilic acid
(c) p-Nitroaminobenzene
(d) p-Methoxyphenol

Answer

Answer: (b) Sulphanilic acid

Question 31.
Reduction of aromatic nitro-compounds using Sn and HCl gives
(a) aromatic primary amines
(b) aromatic secondary amines
(c) aromatic tertiary amines
(d) aromatic amides

Answer

Answer: (a) aromatic primary amines

Question 32.
Which amine amongst the following will answer positively the carbylamine test (i.e., heating with CHCl₃ and KOH)?
(a) C₆H₅ – NH – CH₃

(c) C₆H₅ – NH – C₄H₉
(d) C₆H₅ -N(C₂H₅)₃

Answer

Answer: (b)

Question 33.
Most basic species amongst the following is

Answer

Answer: (d)

Question 34.
When aniline is heated with cone. H₂SO₄ at 455-475 K, it forms
(a) aniline hydrogensulphate
(b) sulphanilic acid
(c) amino benzene sulphonic acid
(d) benzenesulphonic acid

Answer

Answer: (b) sulphanilic acid

Question 35.
Which of the following compounds cannot be identified by carbylamine test?
(a) CH₃CH₂NH₂
(b) (CH₃)₂CHNH₂
(c) C₆H₅NH₂
(d) C₆H₅NHC₆H₅

Answer

Answer: (d) C₆H₅NHC₆H₅

Question 36.
What is obtained when benzoyl chloride reacts with aniline in the presence of sodium hydroxide?
(a) Benzoic acid
(b) Benzanilide
(c) Acetanilide
(d) Azobenzene

Answer

Answer: (b) Benzanilide

Question 37.
Which of the following compounds reacts with NaNO₂ and HCl at 0-4°C to give alcohol/phenol?
(a) C₆H₅NH₂
(b) C₂H₅NH₂
(c) CH₃NHCH₃
(d) C₆H₅NHCH₃

Answer

Answer: (b) C₂H₅NH₂

Question 38.
Which of the following has highest pK_b value?
(a) (CH₃)₃CNH₂
(b) NH₃
(c) (CH₃)₂MH
(d) CH₃NH₃

Answer

Answer: (b) NH₃

Question 39.
Acetylation of a secondary amine in alkaline medium yields
(a) N, N-dialkyl acetamide
(b) N, N-dialkyl amine
(c) N, N-dialkyl amide
(d) acetyl dialkyl amine

Answer

Answer: (a) N, N-dialkyl acetamide

Question 40.
Which of the following is amphoteric in nature?
(a) CH₃NH₂
(b) CH₃NHCH₃
(c) CH₃CONH₂

Answer

Answer: (c) CH₃CONH₂

Question 41.
The amines are basic in nature, hence they form salts with hydrochloric acid. Which of the following will be insoluble in dil. HCl?
(a) C₆H₅NH₃
(b) (C₆H₅)₃N
(c) C₂H₅NH₂
(d) CH₃NHCH₃

Answer

Answer: (b) (C₆H₅)₃N

Question 42.
Primary, secondary and tertiary amines may be separated by using
(a) iodoform
(b) diethyloxalate
(c) benzene sulphonyl chloride
(d) acetyl chloride

Answer

Answer: (c) benzene sulphonyl chloride

Question 43.
When p-toluidine reacts with chloroform and alcoholic KOH, then the product is

Answer

Answer: (b)

Question 44.
An organic compound (X) was treated with sodium nitrite and HCl in ice cold conditions. Bubbles of nitrogen gas were seen coming out. The compound (X) may be
(a) a secondary aliphatic amine.
(b) a primary aromatic amine
(c) a primary aliphatic amine
(d) a tertiary amine

Answer

Answer: (c) a primary aliphatic amine

Question 45.
Among the following:
I. CH₃NH₅
II. (CH₃)₂NH
III. (CH₃)₃N
IV. C₆H₅NH₂
Which will give the positive carbylamine test?
(a) I and II
(b) I and IV
(c) II and IV
(d) II and III

Answer

Answer: (b) I and IV

Question 46.
Cyclohexyiamine is stronger base than aniline become
(a) in aniline electron pair is involved in conjugation
(b) in cyclohexyiamine electron pair is involve conjugation
(c) in aniline-NH, group is protonated
(d) in cyclohexyiamine nitrogen has a negative charge

Answer

Answer: (a) in aniline electron pair is involved in conjugation

Question 47.
The strongest base among the following is
(a) C₆H₅NH₃
(b) p-NH₂C₆H₄NH
(c) m-NO₂C₆H₄NH₂
(d) C₆H₅CH₂NH₂

Answer

Answer: (d) C₆H₅CH₂NH₂

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