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

Impure copper strip is used as cathode.

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Acidified aqueous

C u S O_{4}

is used as electrolyte.

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Pure Cu deposits at cathode.

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Impurities settles as anode mud

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Solution

The correct options are
B Acidified aqueous $C u S O_{4}$ is used as electrolyte.
C Pure Cu deposits at cathode.
D Impurities settles as anode mud
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