Question

Name the anode and the cathode used in the electrolytic refining of impure copper metal.

Answer 1

In the electrolytic refining of impure copper metal, anode is the electrode at which oxidation takes place and cathode is the electrode at which reduction takes place.
Hence, at anode, a thick block of impure copper metal is used from which pure metal oxidises to copper ion in the solution.
At cathode, a thin strip of pure copper metal is used where copper ions from the solution reduce to copper metal and get deposited on the strip.