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In acidic medium, H(2)O(2) changes Cr(2)...

In acidic medium, `H_(2)O_(2)` changes `Cr_(2)O_(7)^(2-)` to `CrO_(5)` which has two (-O-O-) bonds. Oxidation state of Cr in `CrO_(5)` is

A

`+5`

B

`+3`

C

`+6`

D

`-10`

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The correct Answer is:
c
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In acidec medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) to CrO_(5) which has two (-O-O-) bonds. Oxidation state of Cr in CrO_(5) is

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