Question

What chemical process is used for obtaining a metal from its oxide?

Answer 1

A metal can be extracted from its oxide by the process of reduction.

\[\ce{2HgO_{(s)} ->[\Delta] 2Hg_{(l)} + O2_{(g)}}\]

Answer 2

Reduction is the chemical process used for obtaining a metal from its oxide by using reducing agents like carbon, sodium, aluminium or calcium.