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Question

What is the chemical formula of the following ores? Also write the name of the metal that can be extracted from the following ores?

(a) Bauxite
(b) Haematite
(c) Copper pyrite
[3 Marks]

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Solution

(a) Bauxite is the ore of aluminium. Aluminium is extracted from bauxite very profitably and conveniently. The chemical formula of bauxite is Al2O3.
[1 Mark]

(b) Haematite is the ore of iron. The chemical formula of haematite is Fe2O3.
[1 Mark]
(c) Copper pyrite is the ore of copper. The chemical formula of copper pyrite is CuFeS2.
[1 Mark]

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