Chemistry

Give the (i) common (ii) chemical name (iii) formula of two common ores each of aluminium, zinc and iron.

Metallurgy

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Answer

Metal	Common name of ore	Chemical name of ore	Formula of ore
Aluminium	Bauxite	Hydrated aluminium oxide	Al₂O₃.2H₂O
	Cryolite	Sodium aluminium fluoride	Na₃AlF₆
Zinc	Zinc blende	Zinc sulphide	ZnS
	Calamine	Zinc carbonate	ZnCO₃
Iron	Haematite	Iron [III] oxide	Fe₂O₃
	Magnetite	Tri iron tetra oxide	Fe₃O₄

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