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Question

Which is the principal ore of Al?


A

Bauxite

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B

Enargite

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C

Bornite

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D

covellite

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Solution

The correct option is A

Bauxite


Bauxite - the hydrated oxides of aluminium is the principal ore of the metal. Enargite is Cu3AsS4 - a mineral containing copper and arsenic. A similar mineral, one which is made up of copper, iron, and sulphur is bornite: (Cu5FeS4). Lastly, covellite - CuS - is a rare copper ore.


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