Aluminium cannot be obtained from aluminium oxide by heating the oxide with carbon. Why not?
Aluminium is more reactive than carbon.
Aluminium is less reactive than carbon.
Aluminium oxide has a very low melting point.
Aluminium oxide is not found in the Earth.
39 exam-style questions on AQA GCSE Chemistry 4.1 Reactivity of metals, covering 4.1.1 Metal oxides, 4.1.2 The reactivity series, 4.1.3 Extraction of metals and reduction, and 4.1.4 Oxidation and reduction in terms of electrons. Each one has a worked solution and a mark scheme showing where the marks go.