In which of the following complexes, nickel is in the highest oxidation state? Options: A . &nbsp K 4 [ N i ( C N ) 4 ] B . &nbsp [ K 2 N i F 6 ] C . &nbsp [ N i ( C O ) 4 ] D . &nbsp [ N i ( C N ) 4 ] 2 −

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

Question -

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

Options:

A .

K_{4} [N i (C N)_{4}]

B .

[K_{2} N i F_{6}]

C .

[N i (C O)_{4}]

D .

[N i (C N)_{4}]^{2 -}

Answer: Option B
:
B
Nickel has + 4 oxidation state.

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