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The most important ore of Aluminium is?

  • A.Calamine
  • B.Calcite
  • C.Galena
  • D.Bauxite

Answer: D

Bauxite is the chief ore of aluminium, a mixture of hydrated aluminium oxides.

The oxide is extracted from it by the Bayer process and then reduced to the metal by electrolysis in molten cryolite. Calamine is a zinc ore, calcite calcium carbonate, and galena lead sulphide.

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