Question

2. Aluminium is extracted from its ore by passing an electric current through
(a) solid bauxite (Al2O3) and cryolite (NazAlF6).
(b) fused bauxite (Al2O3) and solid cryolite (Na3AlF6).
(c) copper sulphate (CuSO2) solution.
(d) fused bauxite (Al2O3) and cryolite (Na3AlF6).
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Answer 1

Answer:

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