Question

What happens when benzene diazonium chloride is heated with water?

Answer 1

When benzene diazonium chloride is heated in water it undergoes the oxidation reaction.

Explanation:

• The formation of phenol and nitrogen gas as byproduct.
• The phenol is formed by the forming the oily substance either or black oily substance, this is formed as a result of diazonium ions reacting with water.
• The salt is removed from the compound. Hence by heating the benzene diazonium, then the phenol and nitrogen gas is formed.

To know more;

WHAT HAPPENS WHEN BENZENE DIAZONIUM CHLORIDE IS HEATED IN PRESENCE OF WATER?? GIVE THE DETAILED EXPLANATION REACTION AND MECHANISM.

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Answer 2

When benzene diazonium chloride is heated with water phenol, nitrogen gas and hydrochloric acid is formed.

Explanation:

• The diazonium salts comprises -N₂⁺ group. In benzene diazonium chloride, this group is attached to benzene ring.
• When the diazonium reacts with water, the nitrogen ions are replaced with OH ions.
• When OH is attached to benzene, it forms phenol. The replaced nitrogen ions are liberated as nitrogen gas and chloride in the salt form hydrochloric acid.
• The phenol formed is either as a solution or black oil.
• This reaction is commonly used in synthesis of Aniline. During aniline synthesis, diazonium salt is formed when Aniline reacts with NaNO₂/HCl.
• The chemical reaction involved is attached in the image below.