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Calcination

The pair that...

Question

The pair that does not require calcination is:

Z n O

and

M g O

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F e_{2} O_{3}

and

C a C O_{3} \cdot M g C O_{3}

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Z n O

and

F e_{2} O_{3} \cdot x H_{2} O

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Z n C O_{3}

and

C a O

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Solution

The correct option is D $Z n O$ and $M g O$
$Z n O$ and $M g O$ both are in oxide form therefore no change on calcination.

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Similar questions

C a O

M g O

C O_{2}

S O_{3}

N a_{2} O

Z n O

A l_{2} O_{3}

F e_{2} O_{3}

C a O, M g O, C O_{2}, S O_{3}, N a_{2} O, Z n O, A I_{2} O_{3}, F e_{2} O_{3}

Z n O, F e_{2} O_{3}, A l_{2} O_{3}

Z n O

F e_{2} O_{3}

A l_{2} O_{3}

S n O_{2}

M g O

A C a l c i n a t i o n - ------ \to C a O + M g O + 2 C O_{2}

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