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When hydrogen peroxide is added to acidi...

When hydrogen peroxide is added to acidified potassium dichromate, a blue colour is produced due to formation of `:`

A

`CrO_(3)`

B

`Cr_(2)O_(3)`

C

`CrO_(5)`

D

`CrO_(4)^(2-)`

Text Solution

Verified by Experts

Blue coloure is due to the formation of `CrO_(5)` as follows `:`
`Cr_(2)O_(7)^(2-) + 2H^(+) + 4H_(2)O_(2) rarr 2CrO_(5) + 5H_(2)O`
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