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Reaction with Metals

Oxidation of ...

Question

Oxidation of __________ with manganese dioxide ( $M n O_{2}$ ) gives chlorine.

H C l

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H_{2} S O_{4}

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H N O_{3}

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H C O O H

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Solution

The correct option is A $H C l$
Manganese dioxide upon reaction with hydrochloric acid gives chlorine.
$M n O_{2} + 4 H C l \to C l_{2} + M n C l_{2} + 2 H_{2} O$

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