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CGP EDU Academic Team
Published on: August 11, 2026
Refining of impure copper with zinc impurity is to be done by electrolysis using electrodes as : Cathode Anode
Text Solution
Verified by ExpertsThe correct answer is:
C
Pure metal always deposits at cathode according to the following reactions.
Anode (oxidation) : M (s) — → M 2+ (aq) + 2e – (M = Cu, Zn, Fe)
Cathode (reduction) : Cu 2+ (aq) + 2e – — → Cu(s)
Thus, the net cell reaction simply involves transfer of Cu metal from the impure anode to the pure cathode, Cu obtained by this process is 99.95% pure.
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