# Explain what happens at each electrode when dilute sulfuric acid is electrolysed using inert electrodes.

> Edexcel GCSE Chemistry (1CH0) — 3.2 Electrolytic processes · Explain · 4 marks

## Mark scheme (4 marks)

1. Hydrogen is produced at the cathode (negative electrode)
2. At the cathode, positively charged hydrogen ions (H⁺) gain electrons / reduction occurs
3. Oxygen is produced at the anode (positive electrode)
4. At the anode, negatively charged hydroxide ions (OH⁻) lose electrons / oxidation occurs

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