Which of the following compound is used as an electrolyte when copper is purified by electrorefining?

Hydrogen Chloride (HCl)

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Copper Sulphate ( $C u S O_{4}$ )

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Lithium Bromide (LiBr)

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Water ( $H_{2} O$ )

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Solution

The correct option is B
Copper Sulphate ( $C u S O_{4}$ )

In electrorefining, an electrolyte should contain particular ion that is similar to impure metal. So, here $C u S O_{4}$ can be used as an electrolyte.

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