Question

How do you distinguish chlorobenzene from benzyl chloride?

• A. $AgN{O}_3$ test
• B. Schiff reagent test
• C. By analysis of elemental composition
• D. By adding sodium bicarbonate

Answer 1

Answer: (A)

$AgN{O}_3$ test

You distinguish chlorobenzene from benzyl chloride $AgN{O}_3$ test.
In chlorobenzene, Cl atom is attached to aromatic C atom. It is difficult to break $C-Cl$ bond.
No reaction of chlorobenzene will occur with $AgN{O}_3$.
In benzyl chloride Cl atom is attached to aliphatic C atom. It is easy to break $C-Cl$ bond.
The reaction of benzyl chloride with $AgN{O}_3$ will give white ppt of AgCl.