On adding hydrochloric acid to $M n O_{2}$ , which gas is evolved?

H_{2}

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C l_{2}

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O_{2}

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None of the above

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Solution

The correct option is A $C l_{2}$
$M n O_{2} + 4 H C l ⟶ M n C l_{2} + 2 H_{2} O + C l_{2}$
Greenish yellow gas chorine is evolved.

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