Question

Benzene diazonium chloride when treated with hypophosphorous acid, produces:

• A. Phenol
• B. Phenyl phosphate
• C. Benzene
• D. Phenyl phosphite

Answer 1

The correct option is C Benzene

This is a characteristic reaction of arenediazonium salt. When hypophosphorous acid is treated with diazonium salts it is reduced to arene.

$Ph{N}_2^{+}C{l}^{-}+H_{3}P{O}_2\to C_6{H}_6$ (benzene)

The treatment of arenediazonium salts with hypophosphorous acid gives benzene.

So, option C is the correct answer.