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Among the following , identify the speci...

Among the following , identify the species with an atom in +6 oxidaiton state of metal

A

`MnO_(4)^(-)`

B

`Cr(CN)_(6)^(3-)`

C

`NiF_(6)^(2-)`

D

`CrO_(2)CI_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
oxidation of stte of Cr is +6
`(Cr_(2))O_(7))^(2-)+14H^(+)+6e^(-)rarr2Cr^(3+)+7H_(2)O`
Equivalent mass of `K_(2)Cr_(2)O_(7)`=(Molecular)/(6)mass`
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