Question
In electrorefining of copper, impure copper is made anode.
Answer: Option A
:
A
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A
In electro-refining process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. A solution of the metal salt is used as an electrolyte.
Upon passing electric current, the copper atoms migrate from the anode towards the cathode and get deposited there.
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