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QJEEM05Che1ab: JEE Main 2005 Chemistry - Class 12 JEEM05Che1ab Solution: The oxidation state of chromium in the final product formed the …

The oxidation state of chromium in the final product formed the reaction between

K{\rm I}

and acidified potassium dichromate solution is :

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C r_{2} O_{7}^{2 -} + 6 I^{-} + 14 H^{+} \overset{}{⟶} 3 I_{2} + 7 H_{2} O + 2 C r^{3 +}

oxidation state of

Cr

3+.