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  • Which one of the following figures correctly describes the process of electrolytic refining

Which one of the following figures correctly describes the process of electrolytic refining?

Answers (1)

Ans. (c)
Electrolytic refining is a process of refining a metal by the process of electrolysis.
Impure metal is made anode and is connected to the positive terminal of battery. Pure metal is made cathode and is connected to the negative terminal of the battery.
Electrolytic refining of Cu: A large piece of impure copper is used as the anode with a thin strip of pure copper as the cathode. Copper(II) sulphate solution is the electrolyte.

Cu2+ ions from the solution are deposited on the cathode while Cu from impure anode dissolves into the solution and the impurities settle down below anode as anode mud.

Therefore option (c) is correct

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