A positive carbylamine test is given by | vedclass

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Question

(B) The carbylamine test is a characteristic reaction for primary $(1^\circ)$ amines (both aliphatic and aromatic).$2, 4$-dimethylaniline is a primary

Vedclass · Accepted Answer

$2, 4$-dimethylaniline

Vedclass · Answer

(B) The carbylamine test is a characteristic reaction for primary $(1^\circ)$ amines (both aliphatic and aromatic).$2, 4$-dimethylaniline is a primary aromatic amine $(Ar-NH_2)$,so it reacts with chloroform $(CHCl_3)$ and alcoholic potassium hydroxide $(KOH)$ to form an isocyanide (carbylamine),which has a foul smell.$N, N$-dimethylaniline is a tertiary $(3^\circ)$ amine.$N$-methyl-$o$-methylaniline is a secondary $(2^\circ)$ amine.$p$-methylbenzylamine is a primary amine,but the question specifically refers to the structure provided in the image,which is $2, 4$-dimethylaniline (also known as $2, 4$-xylidine).

$A$ positive carbylamine test is given by

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