When the sample of copper with zinc impurity is to be purified by
electrolysis, the appropriate electrodes of cathode and anode are
[AIEEE 2002]
Pure zinc, Pure copper
Impure sample, Pure copper
Impure zinc, Impure sample
Pure copper, Impure sample
Impure metal made anode while pure metal made cathode.
Pure copper sulphate can be obtained from its impure sample by the process of