Q. A positive carbylamine test is given by
I. , -dimethylaniline
II. , -dimethylaniline
III. -methyl--methylaniline
IV. -methylbenzyl amine

 1531  175 UPSEEUPSEE 2013Amines Report Error

Solution:

Carbylamine or isocyanide test is given by only primary amines, whether they are aliphatic or aromatic.

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I. II and III are aromatic but compound IV is an aliphatic amine. Further, compound 1 is tertiary amine, II and IV are primary amines, thus give positive carbylamine test, whereas compound III is a secondary amine.