Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process…

Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are)
  1. Impure Cu strip is used as cathode
  2. Acidified aqueous CuSO4 is used as electrolyte
  3. Pure Cu deposits at cathode
  4. Impurities settle as anode-mud.

Solution

Impure Cu is used as anode pure Cu deposited at cathode. Electrolyte is acidified solution of CuSO4 impurities settle as anode mud.

Asked in: JEE Advanced 2015 (Paper 1)

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