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What is the oxidation number of chlorine...

What is the oxidation number of chlorine in bleaching powder?

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Chemical formula of bleaching powder is
Oxidation no. of chlorine in `CI^(-)` ion =-1
Oxidation no.of chlorine(x)in `OCI^(-)` ion =-2+x=-1,or x=+1
The average oxidation no. of CI=-1+1=0
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