Question

Carbylamine test is the distinguishing test for ______.

Options

• 3° amine 

• 1° amine

• 1° alcohol

• Carboxylic acid

Answer 1

Carbylamine test is the distinguishing test for 1° amine.

Explanation:

The Carbylamine test (also known as the Isocyanide test) is a chemical test used to detect primary amines (1° amines), both aliphatic and aromatic. 

Reaction:

$$\mathrm{R}-\mathrm{NH}{\phantom{A}}_2+\mathrm{CHCL}{\phantom{A}}_3+3\mathrm{KOH}⟶\mathrm{R}-\mathrm{NC}(\mathrm{isocyanide})+3\mathrm{KCl}+3\mathrm{H}{\phantom{A}}_2\mathrm{O}$$