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During extraction of metals, electrolyti...

During extraction of metals, electrolytic refining is used to obtain pure metals. (a) Suggest a suitable electrolyte also. (c ) In this electrolytic cell, where do we get pure copper after passing electric current ?

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In the electrolytic refining of impure copper metal :
(a) A rod of impure copper is used as anode while that of pure copper as cathode.
(b) The electrolyte is a water soluble salt of copper. It is normally an aqueous solution of copper sulphate.
(c ) On passing current, pure copper gets deposited at the cathode. It can be scrapped off later on.
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