Question

By the reduction of which of the following, do we get p-phenylenediamine?

(a) Para-nitroaniline

(b) Para-aniline

(c) Para-nitro amide

(d) Aniline

I had been asked this question in an international level competition.

This is a very interesting question from Equipments and Processes in portion Amination by Reduction of Unit Processes

Answer 1

The correct choice is (a) Para-nitroaniline

To elaborate: When p-nitro aniline is reduced, we get p-phenylenediamine.