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When SO2 is passed through acidified sol...

When `SO_2` is passed through acidified solution of potassium dichromate, then chromium sulphate is formed, the.change in valency of chromium is:

A

`+4` to `+2`

B

`+5` to `+3`

C

`+6` to `+3`

D

`+7` to `+2`

Text Solution

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The correct Answer is:
C
When `SO_2` is passed through acidified solution of potassium dichromate, then chromium sulphate is formed, the change in valency of chromium is + 6 to + 3.
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