Q. Which of the following reactions is given by only primary amines?
A) Reaction with HONO
B) Reaction with chloroform and alcoholic KOH
C) Reaction with acetyl chloride
D) Reaction with Grignard reagent
Explanation
(b)
In carbylamines reaction, when a primary amine reacts with chloroform in presence of alc. KOH, it gives $iso$-cyanide which has abonxious odour. This reaction is given by primary amine
$RNH_{2} + CHCl_{3} + 3KOH\overset{\ \ \mathrm{\Delta}\ \ }{\rightarrow}RNC\ \ \ + 3KCl + 3H_{2}O$
Primary (alc) alkyl
Amine $iso$-cyanide
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.