Essential Chemistry for IGCSE - Electricity And Chemistry (Section 4 - No. 9)
In the electrolysis of a solution containing Cu2+ ions, what will happen if the cathode is a copper electrode?
The mass of the cathode will decrease.
The copper electrode will dissolve.
Copper will be deposited on the cathode.
Oxygen gas will be produced.
Explanation
Copper ions will be reduced to copper atoms at the cathode, depositing on the electrode.
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