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In electrorefining of copper,some gold is deposited asA. anode mudB. cathode mudC. cathodeD. electrolyte |
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Answer» Correct Answer - A In electrorefining of copper , impure copper is made anode while pure Cu strip is made cathode. On passing current , impurities like Fe, Zn, Ni,Co ( which are more positive ) dissolved in the solution and Au, Ag , etc. , (which are less electropositive ) settle down below as anode mud . |
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