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The oxidation state of chrominium in the final product formed in the reaction between `KI` and acidified potassium dichromate soluttion is

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The oxidation state of chrominium in the final product formed in the reaction between `KI` and acidified potassium dichromate soluttion is

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`(a) Cr_(2)O_(7)^(2-)+6I^(_)+14H^(+)rarr3I_(2)+7H_(2)O+2Cr^(3+)` oxidation state of Cr is `3+`
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