question_answer

Which of the following reactions can produce aniline as main product?

A) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+Zn/KOH\]

B) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+Zn/N{{H}_{4}}Cl\]

C) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+Li/Al{{H}_{4}}\]

D) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+Zn/HCl\]

Correct Answer: D

Solution :

[d] Various products are formed when nitroarenes are reduced. These are given below for \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}.\]

Medium	Main product
In acidic medium (metal/HCl)	Aniline \[({{C}_{6}}{{H}_{5}}N{{H}_{2}})\]
In neutral medium \[(Zn/N{{H}_{4}}Cl)\]	Phenyl hydroxylamine,
In alkaline medium

            Thus, Aniline will be main product in case of [d].