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Aluminium is commercially produced usually from ________

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in Construction & Building Materials by (189k points)
Aluminium is commercially produced usually from ________

(a) Hematite

(b) Pyrite

(c) Malachite

(d) Bauxite

This question was addressed to me by my school principal while I was bunking the class.

This interesting question is from Non-Ferrous Metals and Alloys in chapter Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

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The correct choice is (d) Bauxite

Explanation: Aluminium is available in various forms such as sulphates, oxides, phosphates, etc. Aluminium is commercially produced usually from bauxite. Bauxite is a hydrated oxide of aluminium.

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