The chemical formula of bauxite ore is ______.

Z n C O_{3}

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A l_{2} O_{3} .2 H_{2} O

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F e_{2} O_{3}

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C u_{2} O

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Solution

The correct option is B $A l_{2} O_{3} .2 H_{2} O$

Bauxite is the ore of aluminium having chemical formula as $A l_{2} O_{3} .2 H_{2} O$ .

$Z n C O_{3}$ is the chemical formula of calamine.

$F e_{2} O_{3}$ is the chemical formula of haematite.

$C u_{2} O$ is the chemical formula of cuprite.

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