Essential Chemistry for IGCSE - Electricity And Chemistry (Section 6 - No. 28)
In the electrolysis of a copper(II) sulfate solution using copper electrodes, what happens at the cathode?
Copper ions are oxidized.
Copper is deposited.
Oxygen is formed.
The copper electrode dissolves.
Explanation
Copper ions gain electrons and deposit on the cathode as copper metal.
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