Purification of aluminium done by electrolytic refining is known as

Extraction of silver from commercial lead is possible by

Which of the following pairs of metals is purified by the van Arkel method?

Which of the following methods is $NOT$ used for the refining of impure metals in metallurgy?

In the electrolytic refining of metals,the electrolysis of an aqueous solution of its complex salt is performed using an impure metal as the anode and a strip of pure metal as the cathode. This method cannot be used for the refining of which of the following metals?

Identify the correct statement from the following: