Question

Q.15. (i) Define the term 'anode mud'. Name the electrode
made of pure metal.
(ii) Give the reactions taking place at cathode and at
anode during the electrolytic refining of copper.​

Answer 1

Electrolytic refining : In electrolytic refining method, the impure metal is made to act as anode. A strip of the same metal in pure form is used as cathode. ... Impurities from the blister copper deposit as anode mud which contains antimony, selenium, tellurium, silver, gold and platinum.