electrochemistry

Question: .During the purification of copper by electrolysis



1) The anode used are made of copper ore
2) Pure copper is deposited on the cathode, with the evolution of hydrogen at the cathode
3) The impurities such as Ag, Au, Zn and Fe go into solution
4) The voltage is carefully controlled to prevent the deposition of Zn and Fe at the cathode
Solution: Explanation: No Explanation
Electrolytes and Electrolysis

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