which electrolyte is used in the electrolytic refining of copper

Dear student

Acidified copper sulphate is used in the electrolytic refining of copper. Impure metal is made as anode and pure metal is made as cathode. When electric current is passed , the impure metal from anode gets dissolved in electrolyte solution.
Reactions taking place :
At cathode: Cu²⁺ + 2e^- --> Cu
At anode: Cu --> Cu²⁺ + 2e^-

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