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What happen when a solution of potassium...

What happen when a solution of potassium chromate is treated with an excess of dil. Nitic acid?

A

Cr reduces in the oxidation state `+3` from `CrO_(4)^(-2)`

B

Cr oxidies in the oxidation state `+7` from `CrO_(4)^(2-)`

C

`Cr^(+3)` and `Cr_(2)O_(7)^(2-)` will be formed

D

`Cr_(2)O_(7)^(2-)` and `H_(2)O` will be formed

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The correct Answer is:
d
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