The common impurities present in bauxite are:

{F e}_{2} O_{3}, {S i O}_{2}

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N a C l, {M g C l}_{2}

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{A l C l}_{3}, {M g C l}_{2}

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{C a C l}_{2}, {M g C l}_{2}

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Solution

The correct option is B ${F e}_{2} O_{3}, {S i O}_{2}$
Bauxite has a number of impurities in it including iron oxides(hematite and goethite), $F e_{2} O_{3}$ the sand silicon dioxide $S i O_{2}$ the clay mineral Kaolinite and asmall amount of $T i O_{2}$ known as Anatase.
Hence option A is correct answer.

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