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

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(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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