Question

why do we use impure copper during electrolysis? why not pure form?​

Answer 1

Explanation:

Electrolysis of copper transfers copper atoms from an impure copper anode to a pure copper cathode, leaving the impurities behind. Unrefined copper is about 99 % pure. ... The ions all migrate toward the cathode, but Cu²⁺(aq) is more readily reduced than Fe²⁺(aq) or Zn²⁺(aq), so it is the only ion that plates out ...