JEE Main Chemistry question

Which of the following reactions is given only by primary amines?

(A)Reaction with
(B)Reaction with chloroform and alcoholic KOHCorrect
(C)Reaction with acetyl chloride
(D)Reaction with Grignard reagent

Answer: (B)

Solution

Nitrous acid reacts with primary, secondary AND tertiary amines, just giving a different product each time (diazonium salt/alcohol for 1°, oily -nitrosamine for 2°, ring-nitrosation or an unstable salt for 3°) — so this is not exclusive to primary amines. Acetyl chloride and Grignard reagents likewise react with

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Question ID VK-150415