In a reaction of aniline a coloured product $C$ was obtained. $\text {The structure of } C \text { would be}$

In a reaction of aniline a coloured product $C$ was obtained.
$\text {The structure of } C \text { would be}$




Solution

Key Idea : $1^{\circ}$ amines form diazonium salts at low temperature and diazonium salts are weak electrophiles, so react with strongly activated ring. (takes $\mathrm{H}$ from benzene nucleus).
Note : The $-\mathrm{N}=\mathrm{N}-$ linkage is called -azo linkage, and the reactions in which azo or diazo compounds are formed, are called diazo coupling reactions.

Asked in: NEET 2008 (Screening)

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