# Aqueous copper chloride solution is electrolysed using inert electrodes. Describe and explain what is produced at each electrode, naming the electrode in each case.

> Edexcel GCSE Chemistry (1CH0) — 3.2 Electrolytic processes · Describe and explain · 4 marks

## Mark scheme (4 marks)

1. Chlorine is produced at the anode (positive electrode)
2. At the anode, chloride ions lose electrons (oxidation), so chlorine is produced rather than oxygen because the solution contains halide ions
3. Copper is produced at the cathode (negative electrode)
4. At the cathode, copper ions gain electrons (reduction), so copper is deposited rather than hydrogen because copper is less reactive than hydrogen

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