MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers

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.

Amines Class 12 MCQs Questions with Answers

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
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 1
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
Amines MCQ Pdf Class 12 Chapter 13

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


Secondary amines can be prepared by

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?
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 3
(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?
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 4
(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.
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 5
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
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 6
(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?
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 7
(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.
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 8
Product would be
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 9

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
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 10
(c) C6H5 – NH – C4H9
(d) C6H5 -N(C2H5)3

Answer

Answer: (b)


Question 33.
Most basic species amongst the following is
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 11

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 pKb 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
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 12

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
MCQ Questions for Class 12 Chemistry Chapter 13 Amines with Answers 13

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


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

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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