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When sulphur dioxide is passed in an aci...

When sulphur dioxide is passed in an acidified `K_(2)Cr_(2)O_(7)` solution , the oxidation state of sulphur is changed from

A

`+4 to +6`

B

`+6 to +4`

C

`+4 to 0`

D

`+4 to +2`.

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(2)CrO_(7)+H_(2)SO_(4)+3overset(+4)(SO_(2))toK_(2)overset(+6)(SO_(4))+Cr_(2)(SO_(4))_(3)+H_(2)O` The oxidation state of S changes from +4 to +6.
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