Question

Among `[Ni(CO)_4], [Ni(CN)_4]^(2-), [NiCl_4]^(2-)` species, the hybridization states at the `Ni` atom are, respectively (At. no.of `Ni=28`)
A. `sp^(3)` , `dsp^(2)` , `dsp^(2)`
B. `sp^(3)` , `dsp^(3)` , `sp^(3)`
C. `sp^(3)` , `sp^(3)` , `dsp^(2)`
D. `dsp^(2)` , `sp^(3)` , `sp^(3)`

Answer 1

Correct Answer - B
Ni
`[Ni(CO)_(4)] implies` oxidation state of Ni is zero and CO is a strong field ligand:

`[NI(CN)_(4)]^(2-) implies` oxidation state of Ni is `+2` and `CN^(-)` is a strong field ligand:

`[NiC1_(4)]^(2-) implies` oxidation state of Ni is `+2` and C1 is a weak field ligand: