A solution of copper sulphate is used as an electrolyte to purify :

copper

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sulphur

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carbon

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silver

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Solution

The correct option is A copper
Electrorefining of copper:
Anode: Impure copper or crude copper.
Cathode: Pure copper.
Electrolyte: 15% $C u S O_{4}$ Solution + 5% $H_{2} S O_{4}$
When electric current is passed through the electrolyte, the anode gradually dissolve and pure copper is deposited on the cathode which gradually grow in size. The impurities like. Fe, Zn, Ni etc,dissolved in the solution as sulphates while gold, silver, platinum settle down below the anode as anode mud.

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Similar questions

Name the process which can be used to purify an impure sample of copper sulphate.

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

An electrolytic cell is set up using two copper electrodes and an aqueous solution of copper (II) sulphate given below:

Name the ion discharged at the anode.

A

B

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