Question

Chlorobenzene can be prepared by reacting aniline with

Answer 1

When aniline reacts with NaNO2 +HCl it give diazonium benzene and it react with CuCl + HCl it give chlorobenzene.
Hope this will help u..

Answer 2

Explanation :

Step 1 : First, primary aromatic amine (Aniline) react with the nitrous acid at low temperature, result in the formation of diazonium salt (benzenediazonium chloride). This reaction is known as diazotisation reaction.

Step 2 : Second, benzenediazonium chloride salt react with the copper chloride which result in the formtaion of chlorobenzene. This reaction is known as sandmeyer reaction.

The complete reaction are shown below.