Aluminium is primarily extracted from Bauxite ore (hydrated aluminium oxide, Al₂O₃·nH₂O). Iron is commonly extracted from Magnetite (Fe₃O₄) or Hematite (Fe₂O₃). Copper is extracted from various ores, including Malachite (copper carbonate hydroxide, Cu₂(CO₃)(OH)₂) and Chalcopyrite (CuFeS₂). Zinc is extracted from ores like Calamine (Zinc Carbonate, ZnCO₃) or Sphalerite (Zinc Sulphide, ZnS). Option A correctly matches each metal with one of its principal ores in the specified order: Aluminium (Bauxite), Iron (Magnetite), Copper (Malachite), and Zinc (Calamine).
Aluminium, Iron, Copper and Zinc are extracted from
Asked in UPSC CAPF 2019 · Topic: Metals, Minerals, Ores: Properties, Uses (Important ores of common metals (e.g., iron, aluminum, copper, zinc, lead, mercury) and their chemical formulae)
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Answer: A. Bauxite, Magnetite, Malachite and Calamine respectively
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