Which of the following is/are true regarding bleaching powder?

It is used to manufacture chloroform.

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It is used for disinfecting drinking water.

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It is used as additive in the food.

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It is used as oxidizing agents.

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Solution

The correct option is D It is used as oxidizing agents.
Bleaching powder ( ${CaOCl}_{2}$ ) is also known as chloride of lime. It is usually prepared by the reaction of ${Cl}_{2}$ gas on ${Ca(OH)}_{2}$ .

${C a (O H)}_{2} + {C l}_{2} \to {C a O C l}_{2} + H_{2} O$

Bleaching powder is commonly used :

for disinfecting drinking water

to manufacture chloroform

as oxidizing agents

for bleaching washed clothes in laundry

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