Question:

When benzediazonium chloride in hydrochloric acid reacts with cuprous chloride, then chlorobenzene is formed. The reaction is called

Updated On: Jul 7, 2022
  • Gattermann reaction
  • Perkin reaction
  • Etard reaction
  • Sandmeyer reaction
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The Correct Option is D

Solution and Explanation

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.
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Concepts Used:

Amines

Amine is a type of compound which is derived from ammonia (NH3). According to Organic chemistry, they are basically classified as the functional groups of the organic nitrogen compounds that contain nitrogen atoms with a lone pair.

Amine - Types

Primary Amines:

It is formed when one hydrogen atom in ammonia is substituted by an alkyl or aromatic group. Amino acids and methyl amine are the best examples that why aromatic amines include aniline.

Secondary Amines:

Amines that have two organic substitutes either alkyl or aryl ones or both and are bound to the nitrogen together with one hydrogen are termed as secondary amines. For Example, Dimethylamine.

Tertiary Amines:

Tertiary Amines are the amines where the nitrogen consists of three organic substitutes. For example, Trimethylamine and EDTA.