Electrolytic reduction of alumina

Electrolytic reduction of nitrobenzene in strongly acidic medium gives

Aluminium is produced by the electrolytic reduction of fused _______ in the electrolytic cell.

Explain the electrolytic reduction of nitro benzene ?

The intermidiate formed on electrolytic reduction of nitrobenzene in "conc."H_2SO_4 is……………

Metals of high reactivity : Electrolytic reduction , refining :: Metals of low reactivity : ____________

Nitrobenzene on electrolytic reduction in con.sulphuric acid, the intermediate formed is