Reduction of benzenediazonium chloride with Zn/HCl gives
(1) aniline.
(2) phenylhydrazine.
(3) azobenzene.
(4) hydrazobenzene.
Reduction of benzenediazonium chloride with Zn/HCl gives aniline as the main product because Zn/HCl is a strong reducing agent. The reaction is
Hence, the correct option is (1).
