Bleaching powder is obtained when slaked lime reacts with gas.

oxygen

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chlorine

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hydrogen

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Solution

The correct option is B chlorine
Bleaching powder is obtained when chlorine gas is passed over dry slaked lime.
$C a (O H)_{2} (s) + C l_{2} (g) \to C a O C l_{2} (s) + H_{2} O (l)$

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Bleaching powder is obtained, when slaked lime reacts with ______.

Bleaching powder is prepared by passing chlorine gas over dry slaked lime.

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