Question

With the help of a labelles diagram,explain the process of electrorefining.​

Answer 1

Answer:

Electrolytic refining of copper is done in the following manner.

A cathode made up of a strip of pure copper is connected externally to a battery which is connected to the anode that is made up of an impure strip of copper. The electrodes are then immersed into a Copper sulphate solution. When electricity passes through them:

Impure copper from the anode dissolves and goes into the copper sulphate solution; pure copper from the solution gets deposited on the cathode. The insoluble impurities settle down at anode, called “anode mud”.

Explanation:

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Answer 2

Electrorefining refers to the process of using electrolysis to increase the purity of a metal extracted from its ore (compound or mixture of compounds from which a metal can be extracted commercially). The anode, positive electrode, is the impure metal to be purified.