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The yellow colour of chromates changes t...

The yellow colour of chromates changes to orange on acidification due to the formation of

A

`Cr^(3+)`

B

`Cr_(2) O_(3)`

C

`Cr_(2)O_(7)^(2-)`

D

`CrO^(4-)`

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(yellow)(CrO_(4)^(-))overset(H^(+))hArrunderset("orange")(Cr_(2)O_(7)^(-2))`
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