Identify the compound Y in the following reaction.

Options

A.
B.
C.
D.

Answer

A

Explanation

When a primary aromatic amine is dissolved or suspended in cold aqueous mineral acid and treated with sodium nitrite, a diazonium salt is formed. When this freshly prepared diazonium salt is mixed with cuprous chloride, diazonium group is replaced by CI. Then, chlorobenzene is formed which is Y in this reaction.