Questions  

When the sample of Cu with Zn impurity is to be purified by electrolysis, the appropriate electrodes are:

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a
Cathode         AnodePure Zn        Pure Cu
b
Cathode                     AnodeImpure sample         Pure Cu
c
Cathode              AnodeIrnpure Zn         Impure sample
d
Cathode                AnodePure copper          Impure sample
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detailed solution

Correct option is D

Anode Cu→Cu2++2e(Impure sample)CathodeCu2++2e→Cu(pure copper)

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Which  process of reduction of mineral to the metal is suited for the extraction of copper from its ores with low copper content?

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