Question

What is the principle of electrolytic refining?

Answer 1

 Electrolytic refining; Electrolytic refiningis the process of refining impure metals by using electricity. In this process, impure metal is made the anode and a strip of pure metal is made the cathode. A solution of a soluble salt of the same metal is taken as the electrolyte.

Answer 2

Hey !!

On passing electric current, the metal ions from the electrolytic solution are deposited at the cathode in the form of pure metal while an equivalent amount of metal dissolves from the anode and goes into the electrolytic solution as metal ions.

At cathode :- Mn+ (aq) + ne⁻ ------> M(s)

At anode :- M (s) -----> Mn+ (aq) + ne⁻

Hope it helps you !!