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प्रश्न
Write chemical formulae of the following ores :
(a) Calamine
(b) Haematite
(c) Magnetite
(d) Corundum
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उत्तर
Calamine ZnCO3
Haematite Fe2O3
Magnetite Fe3O4
Corundum Al2O3
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संबंधित प्रश्न
Write the names and chemical formulae of any one ore of iron.
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(B) CaO
(C) SiO2
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