Which of the following statement is not correct?

Options

A. `[Ni(CN)_(4)]^(-2) " and " [PtCI_(4)]^(2)` have the same magnetic moment +
B. `[NiCI_(4)]^(-2) " and "[PtCI_(4)]^(-2)` have different shape.
C. Hybrid state of Co in `[Co(Ox)_(3)]^(-3) " is " sp^(3)d^(2)`
D. In brown-ring complex `[Fe(H_(2)O)_(5)NO]SO_(4)` oxidation state of Fe is +1

Answer

C

Explanation

`[Co("ox")_(3)]^(-3)`
`Co^(+3) =[Ar]4s^(0)3d^(6)`