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JEE Main202124 Feb 2021Evening ShiftChemistryAminesActual

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

Correct answer

1

Step-by-step solution

The colour obtained is the colour of the compound formed in the reaction of aniline with NaNO 2 ​ / HCl at 0 o C followed by coupling with β-naphthol. Aniline on reaction with   NaNO 2 / HCl forms a diazonium salt. This diazonium salt is then coupled with β-naphthol.

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