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What is the oxidation numbr of iodine in...

What is the oxidation numbr of iodine in each of the following compounds: `IF_(7), IF_(5),KI,I_(2), ICI,HIO_(4)`?

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`+7, +5,-1,0-+1+7`
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Oxidation number if iodine in IO_(3)^(-), IO_(4)^(-),KI and I_(2) respectively are

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CENGAGE CHEMISTRY-REDOX REACTIONS-Exercise
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