Explain the electrolytic reduction of nitro benzene ?

The electrolytic reduction of nitrobenzene in strongly acidic medium produces:

Explain electrolytic refining.

Explain the mechanism of nitration of nitro benzene.

Explain the Wolff-Kischner reduction of acetone and write the equation for the same.

Electrolytic reduction method is used for :

Write a note on the ‘reduction of nitro benzene under different conditions.

i) Explain the reduction of nitrocompounds to amines with an examples. ii) Why aromatic primary amines cannot be prepared by Gabriel synthesis?