1.

In which of the following complexes the nickel metal is in highest oxidation state?

Answer»

`NI(CO)_(4)`
`K_(2)NiF_(6)`
`[Ni(NH_(3))_(6)](BF_(4))_(2)`
`K_(4)[Ni(CN)_(6)]`

SOLUTION :`K_(2)[overset(+4)NiF_(6)]`


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