Q. Which one of the following compounds forms a quaternary salt on reacting with excess methyl iodide ?
A) $C_{2}H_{5}OCH_{3}$
B) $\left( CH_{3} \right)_{2}CHOC_{2}H_{5}$
C) $C_{6}H_{5}NH_{2}$
D) $C_{6}H_{5}NO_{2}$
Explanation
(c)
Amines react with alkyl halide (excess) to give quaternary ammonium salt.
$C_{6}H_{5}NH_{2} + 3CH_{3}I \rightarrow C_{6}H_{5}N^{+}\left( CH_{3} \right)_{3}I^{-}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.