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(i) Write the formula and chemical name ...

(i) Write the formula and chemical name of bleaching powder.
(ii) Write chemical equation to represent the action of atmospheric `CO_2` gas on bleaching powder when left exposed in open.
(iii) State for what purpose is bleaching powder used in water treatment plants.

Text Solution

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(i) Chemical formula : `CaOCl_2`
Chemical name : Calcium oxychloride
(ii) `underset("Bleaching powder")(CaOCl_(2)(s))+underset("Carbon dioxide")(CO_2(g))rarrunderset("Calcium carbonate")(CaCO_3(s))+underset("Chlorine")(Cl_(2)(g))`
(iii) Bleaching powder is used in water treatment plants for disinfecting drinking water to make it free of germs.
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