Question

The oxidation state of chromium in the final product formed in the reaction between KI and acidified potassium dichromate solution is :

Answer 1

The oxidation state of chromium in the final product formed in the reaction between KI and acidified potassium dichromate solution is $+3$.

The reaction is as follows:

$C{r}_2{O}_7^{2-}+14H^{+}+6I^{-}\to 2C{r}^{3+}+3I_2+7H_{2}O$