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JEE Advanced2015ChemistryGeneral Principles and Processes of Isolation of MetalsActual

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

Options

  1. AImpure Cu strip is used as cathode
  2. BAcidified aqueous C u S O 4 is used as electrolyte
  3. CPure Cu deposits at cathode
  4. DImpurities settle as anode-mud.

Correct answer

B. Acidified aqueous C u S O 4 is used as electrolyte

Step-by-step solution

Impure Cu is used as anode pure Cu deposited at cathode. Electrolyte is acidified solution of C u S O 4 impurities settle as anode mud.

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