Chemistry (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Foundation · Specification point · 5.4.3.2 · Chemical changes · Electrolysis
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5.4.3.2 Electrolysis of molten ionic compounds
| Content | Key opportunities for skills development |
|---|---|
When a simple ionic compound (eg lead bromide) is electrolysed in the molten state using inert electrodes, the metal (lead) is produced at the cathode and the non-metal (bromine) is produced at the anode. Students should be able to predict the products of the electrolysis of binary ionic compounds in the molten state. | A safer alternative for practical work is anhydrous zinc chloride. |