Question

Match the metal from List 1 with the method of purification form List 2

Answer 1

All the metals occur as Sulphide ores. So they can be roasted and roasting is one type of pyrometallurgical process. So, all these recovered through pyrometallurgy.

Self-reduction is done for less electropositive Sulphide ores. Lead(Pb) and copper(Cu) are refined.

Bessemerisation includes the oxidation with air blown through the molten are for removal of impurities. Copper and Steel are refined from this.

Lead and Copper undergoes self-reduction from their ores. So, They are purified by the self-reduction process.