Aromatic primary amines can be distinguished from aliphatic primary amines by

Options

A. Tollen's test
B. action on red litmus paper
C. azo dye test
D. action with dil. HCI

Answer

C

Explanation

Aromatic primary amine reacts with nitrous acid to give diazonium salt while primary aliphatic amine gives alcohol with nitrous acid

`therefore` Aromatic primary amines give azo dye test.
`RNH_2 + HNO_2 to underset"Alcohol"(ROH) + N_2 uarr + H_2O`