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The oxidation state of chromium in the f...

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

A

`+4`

B

`+6`

C

`+2`

D

`+3`

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(2)Cr_(2)O_(7)+6KI+7 H_(2)SO_(4) rarr 4K_(2)SO_(4)+Cr_(2) (SO_(4))_(3)+ 7H_(2)O+3I_(2)`
`overset(**)(C)r_(2) (SO_(4))_(3) rarr 2 overset+3)(C)r+3 SO_(4)^(2-)`
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