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

Options

A. `+3`
B. `+2`
C. `+6`
D. `+4`

Answer

A

Explanation

`Cr_(2)O_(7)^(2-)+14H^(+)+6I^(-)to2Cr^(3+)+7H_(2)O+3I_(2)`
`Cr_(2)O_(7)^(2-)` is reduced to `Cr^(3+)`
Thus, finial state of `Cr` is `+3`.