The extraction method for a metal depends on where it is positioned in the reactivity series relative to carbon. Magnesium is extracted from molten magnesium chloride using electrolysis.
Explain why electrolysis, rather than reduction with carbon, must be used to extract magnesium from its compounds.
110 exam-style questions on Edexcel GCSE Chemistry 5.1 Obtaining and using metals, covering 5.1.1 The reactivity series of metals, 5.1.2 Displacement reactions as redox reactions, 5.1.3 Extracting metals from ores by reduction, 5.1.4 Biological methods of metal extraction, 5.1.5 Resistance to oxidation and recycling metals, and 5.1.6 Life cycle assessment. Each one has a worked solution and a mark scheme showing where the marks go.