How are the less reactive metals (which are quite low in the reactivity series) extracted ? Explain with the help of an example.

Question

Philoid · Accepted Answer

The process used for extracting the less reactive metals (which are quite low in the reactivity series) is known as the reduction of their oxides by heat alone.

For example:- Mercury (II) sulphide ore is roasted in air when mercury (II) oxide is formed. When this mercury (II) oxide is heated to about 300oC, it decomposes to form mercury metal.