Explain the principle of the method of electrolytic refining of metals. Give one example.
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In this method, the impure metal is made to act as anode. A strip of the same metal is pure form is used as cathode. They are put in a suitable electrolytic bath containing soluble salt of the sane metal. Pure metal ges deposited at the cathode and impurities remain in the solution.
Example :- Electrorefining of Cu , Ag , Au.
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