Aluminium is the most abundant metal in the earth crust and it is widely extracted for its wide range of uses. (i) Name one major ore...

Aluminium is the most abundant metal in the earth crust and it is widely extracted for its wide range of uses.
(i) Name one major ore of aluminium and give its formula
(ii) Name two main impurities found in the ore
(iii)Aluminium oxide is heated first before it is electrolysed. Explain

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(i) Bauxite – Al₂O₃. H₂O

(ii) Iron II oxide
- Silica

(iii) Being ionic, it is only an electrolyte in its molten state. Heating helps to melt it.

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maurice.mutuku answered the question on November 1, 2019 at 06:28

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