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The pair of compounds having metals in t...

The pair of compounds having metals in their highest oxidation state is:

A

`MnO_(2),FeCl_(3)`

B

`[MnO_(4)]^(-),CrO_(2)Cl_(2)`

C

`[Fe(CN)_(6)}^(4-),[Co(CN)_(6)]^(3-)`

D

`[NiCl_(4)]^(2-),[Ni(CO)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
B
`MnO_(4)^(-),X+4(-2)=-1` or X=+7,
`CrO_(2)Cl_(2),X+2(-2)+2(-1)=+6` or `X=+6`.
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