Common impurities present in bauxite are:

C u O

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Z n O

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C a O

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S i O_{2}

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Solution

The correct option is D $S i O_{2}$
Leaching is often used if the ore is soluble in some suitable solvent. Bauxite is purified using leaching.
Bauxite is the principal ore of aluminium.
It usually contains $S i O_{2}$ , iron oxides and titanium oxide ( $T i O_{2}$ ) as impurities.
Hence, option D is the correct option.

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Similar questions

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

{SiO}_{2}

{CaCO}_{3}

CaO

{CaCO}_{3}

{SiO}_{2}

S i O_{2}

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