1. Tardigrade
  2. Question
  3. Chemistry
  4. Statement 1: Aniline on reaction with NaNO2/HCl at 0°C followed by coupling with β-naphthol gives a dark blue coloured precipitate Statement 2: The colour of the compound formed in the reaction of aniline with NaNO2/HCl at 0°C followed by coupling with β-naphthol is due to the extended conjugation.

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Q. Statement 1: Aniline on reaction with $NaNO_2/HCl$ at $0^{\circ}C$ followed by coupling with $\beta$-naphthol gives a dark blue coloured precipitate
Statement 2: The colour of the compound formed in the reaction of aniline with $NaNO_2/HCl$ at $0^{\circ}C$ followed by coupling with $\beta$-naphthol is due to the extended conjugation.

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Solution:

Correct statement 1: Aniline reacts with $NaNO_2/HCl$ at $0^{\circ}C$ followed by coupling with $\beta$-naphthol gives an orange red coloured precipitate.