A student is given solid zinc chloride, a power supply, two graphite electrodes, a crucible and a Bunsen burner.
Describe how the student could use electrolysis to obtain zinc and chlorine from the zinc chloride. Explain why each product forms at the electrode it does.
40 exam-style questions on AQA GCSE Chemistry 4.3 Electrolysis, covering 4.3.1a The process of electrolysis, 4.3.1b Half equations in electrolysis, 4.3.2 Electrolysis of molten ionic compounds, 4.3.3 Using electrolysis to extract metals, 4.3.4 Electrolysis of aqueous solutions, and 4.3.5 Representation of reactions at electrodes as half equations. Each one has a worked solution and a mark scheme showing where the marks go.