C_5H_ 13 N reacts with HNO_2 to give an optically active alcohol. The compound is [OJEE 2008]

JEE Main Chemistry question

reacts with to give an optically active alcohol. The compound is [OJEE 2008]

(A)Pentan-1-amine
(B)Pentan-2-amineCorrect
(C)N,N-dimethylpropan-2-amine
(D)N-methylbutan-2-amine

Answer: (B)

Solution

Reaction with to give an alcohol (with loss of ) is characteristic only of a primary amine. Among the isomers of , pentan-1-amine (CH_3CH_2CH_2CH_2CH_2NH_2) is primary but gives pentan-1-ol, which has no stereocentre and is not optically active. N,N-dimethylpropan-2-amine and

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Question ID VK-150246