Consider the given reaction sequence and identify A, B and C.

Solution:

Aniline reacts with NaNO₂/HCl at 0–5°C to form benzene diazonium chloride.

Diazonium salt on hydrolysis forms phenol.

Phenol on bromination gives bromophenol.

Therefore:

• A = C₆H₅N₂⁺Cl⁻
• B = C₆H₅OH
• C = C₆H₅Br

Correct Answer: Option (2)