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Class 12 Chemistry Chapter 13 Amines MCQs | Class 12 Chemistry Chapter 13 Amines Short Questions and Answers

Questions
1 An organic compound A on reduction gives compound B which on reaction with chloroform and potassium hydroxide forms C. The compound C on catalytic reduction gives N-methylaniline. The compound A is
A nitrobenzene
B nitromethane
C methylamine
D aniline

Answer:nitrobenzene
2 Acetamide and ethyl amine can be distinguished by reacting with
A aq. HCl and heat
B aq. NaOH and heat
C acidified KMnO4
D bromine water

Answer: aq. NaOH and heat
3 Which of the following compound gives dye test
A Aniline
B Methylamine
C Diphenylamine
D Ethylamine

Answer: Aniline
4
In the above reaction sequence, Z is
A CH3CH2CH2NHCOCH3
B CH3CH2CH2NH2
C CH3CH2CH2CONHCH3
D CH3CH2CH2CONHCOCH3

Answer:CH3CH2CH2NHCOCH3
5 Intermediates formed during the reaction of RCONH2 with Br2 and KOH are
A RCONHBr and RNCO
B RNHCOBr and RNCO
C RNHBr and RCONHBr
D RCONBr2

Answer: RCONHBr and RNCO
6 What is the end product in the following sequences of operations;
A CH3NH2
B C2H5NH2
C CH3CN
D CH3COONH4

Answer: C2H5NH2
7 Name the end product in the following series of reactions,
A CH4
B CH3OH
C acetonitrile
D ammonium acetate

Answer: acetonitrile
8 are ........... isomers
A Chain
B functional
C position
D all of these

Answer:functional
9 Primary nitroalkanes on hydrolysis give:
A RCOOH + NH2OH
B RCOOH
C NH2OH
D RCOR

Answer: RCOOH + NH2OH
10 How many primary amines are posible for the formula C4H11N ?
A 1
B 2
C 3
D 4

Answer: 4
11 The type of isomerism shown by C6H5CN and C6H5NC is:
A position
B functional
C enantiomerism
D tautomerism

Answer: functional
12 The product D in the following sequence of reactoins is,
A ester
B amine
C acid
D alcohol

Answer: amine
13 An aromatic primary amine with cold nitrous acid leads to the formation of:
A alcohol
B nitrite
C diazonium salt
D benzene

Answer:diazonium salt
14 The nitration of benzene with fuming HNO3 will give:
A TNB
B 1,3-dinitrobenzene
C picric acid
D 1,4-dinitrobenzene

Answer:TNB
15 Which one of the following on reduction with LiAlH4 yields a secondary amine ?
A Methyl isocyanide
B Acetamide
C Methyl cyanide
D Nitroethane

Answer:Nitroethane
16 The IUPAC name of the compound having formula,

is
A 3-aminohydroxy propionic acid
B 2-amino-propan-3-oic acid
C amino hydroxy propionic acid
D 2-amino-3-hydroxy propionic acid

Answer: 2-amino-3-hydroxy propionic acid
17 In the reaction,
A acetone
B ethanamine
C acetaldehyde
D dimethyl amine

Answer:acetaldehyde
18 RMgX on reacting with cyanogen chloride gives:
A R-NC
B R-Cl
C R-CN
D none of these

Answer:R-CN
19 Which of the following statements about primary amines is false ?
A Alkyl amines are stronger bases than aryl amines
B Alkyl amines react with nitrous acid to produce alcohols
C Aryl amines react with nitrous acid to produce phenols
D Alkyl amines are stronger bases than ammonia

Answer:Aryl amines react with nitrous acid to produce phenols
20 When NaNO2 and dilute HCl were added to an amine at 0°c, a colourless gas was evolved and an ionic compound is formed. The amine is:
A any primary amine
B an aromatic primary amine
C any amine
D none of the above

Answer:an aromatic primary amine

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