Which one of the following is present as an active ingredient in bleaching powder for bleaching action?

C a {(O C l)}_{2}

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C a O_{2} C l

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C a {C l}_{2}

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C a O {C l}_{2}

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Solution

The correct option is A $C a {(O C l)}_{2}$
Calcium hypochlorite is an inorganic compound with formula $C a {(O C l)}_{2}$ . It is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent
$3 C a (O H)_{2} Slaked lime + 2 C l_{2} below - -- \to 35^{o} C C a (O C l)_{2} \cdot C a C l_{2} \cdot C a (O H)_{2} \cdot H_{2} O + H_{2} O Bleaching powder$

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