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The oxidation state of chrominium in the final product formed in the reaction between `KI` and acidified potassium dichromate soluttion isA. ` +4`B. ` +6`C. ` +2`D. ` +3` |
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Answer» Correct Answer - D Always remenber that acidified potassium bechromate is always reduced to ` Cr^(3+)` ions : ` Cr_2O_7^(2-) + 14H^(+) + 6I^(-) rarr 2Cr^(3+) + 7H_2O + 3I_2` The oxidation state fo chromun in ` Cr^(3+) ` ion is ` +3`. |
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