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  • 09-06-2016
  • Chemistry
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What is the oxidation number of chlorine in HClO4?

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Junior9396
Junior9396 Junior9396
  • 09-06-2016

CIO4-=-1

CI=4O=-1

O has a 2- oxidation change so

CI+4(-2)=-1

CI+(-8)=-1

CI=-1+8=7

So the oxidation number of chlorine is 7 in this case

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