The diazonium salt of which of the following compounds will form a coloured dye on reaction with β…

The diazonium salt of which of the following compounds will form a coloured dye on reaction with β-Naphthol in NaOH?

Solution

The colour obtained is the colour of the compound formed in the reaction of aniline with NaNO2/HCl at 0oC followed by coupling with β-naphthol.

Aniline on reaction with NaNO2/HCl forms a diazonium salt. This diazonium salt is then coupled with β-naphthol.

Asked in: JEE Main 2021 (24 Feb Shift 2)

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