The substance which, on treating with chlorine, yields bleaching powder is:

quick lime

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slaked lime

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limestone

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gypsum

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Solution

The correct option is B slaked lime
Slaked lime $C a (O H)_{2}$ on treating with chlorine yields bleaching powder
$C a (O H)_{2} + C l_{2} \to C a O C l_{2} + H_{2} O$

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Similar questions

Which of the following is treated with chlorine to obtain bleaching powder ?

(a) $C a S O_{4}$

(b) $C a (O H)_{2}$

(d) $K O H$

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