MHT CET 2026 Chemistry question

Which from following amines when heated with ethanolic KOH and chloroform does NOT produce foul smell ?

(A)Benzenamine
(B)N , N - Dimethyl anilineCorrect
(C)Propan - 2 - amine
(D)Phenylmethanamine

Answer: (B)

Solution

Heating an amine with and ethanolic KOH is the carbylamine (isocyanide) test, which is given only by primary amines (aliphatic or aromatic): \mathrm{R{-}NH_2 + CHCl_3 + 3KOH \to R{-}NC + 3KCl + 3H_2O}, and the isocyanide () has a very foul,

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Question ID VK-100293