Electrolytic refining of copper

1. A.
   The impure metal from the anode dissolves into the electrolyte.
2. B.
   The pure metal from the electrolyte is deposited on the cathode.
3. C.
   Insoluble impurities settle down at the bottom of the anode.
4. D.
   On passing the current through the electrolyte, the pure metal from the anode dissolves into the electrolyte.

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1. A.
   Impure copper, pure copper, acidified copper sulphate solution
2. B.
   Pure copper, impure copper, sulphuric acid
3. C.
   Pure copper, impure copper, acidified copper sulphate solution
4. D.
   Impure copper, pure copper, distilled water

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