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Question

When benzene diazonium chloride is treated with cuprous chloride in HCl, chlorobenzene is formed. This reaction is called:
  1. Gattermann reaction
  2. Sandmeyer reaction
  3. Perkin reaction
  4. Hinsberg reaction

A
Hinsberg reaction
B
Gattermann reaction
C
Perkin reaction
D
Sandmeyer reaction
Solution
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When benzene diazonium chloride is treated with cuprous chloride in HCl, chlorobenzene is formed.

This reaction is called Sandmeyer reaction. In this reaction, the diazonium group is replaced by chloro group.

Sandmeyer reaction is used to replace the diazonium group with chlorine, bromine or cyano group.

Option D is correct.


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