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Alcohols, Phenols And Ethers

Question
CBSEENCH12008166

How is phenol obtained from aniline?

Solution

A diazonium salt is formed by treating an aromatic primary amine with nitrous acid (NaNO2 + HCl) at 273-278 K. Diazonium salts are hydrolysed to phenols by warming with water or by treating with
dilute acids.