Q2 of 24 Page 298

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The ore of aluminium is ……….. .

The ore of aluminium is bauxite. It is called aluminium oxide Al2O3 from which aluminium can be extracted by the electrolysis process.

The formula is Al2O3.

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1

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………………. Are tower like features in the oil fields.

 2

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The mineral founds in the alluvial deposit is ……….. .

 2

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Anthracite is the ore of ………………. .

 2

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A kind of non-metallic mineral is …………..