The anode mud obtained during electrolytic refining of copper may contain :

Se and Te

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platinum

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silver

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gold

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Solution

The correct options are
A gold
B platinum
C Se and Te
D silver
In electrorefining step, impurities like Fe, Ni, Zn get dissolved in the solution while Au, Ag, Se, Te and Pt are deposited as anode mud below the anode.

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During the electrolytic refining of copper, pure copper is deposited at the anode.

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