Among `[Ni(CO)_(4)],[Ni(CN)_(4)]^(2-),[NiCl_(2)]^(2-)` species, the hybridisation `""^(**)states` of the Ni atom are, respectively (At. No. of Ni = 28)

Options

A. `dsp^(2),dsp^(2),sp^(3)`
B. `sp^(3),sp^(3),dsp^(3)`
C. `sp^(3),dsp^(2)`
D. `dsp^(2),sp^(3),dsp^(2)`

Answer

B

Explanation

`[Ni(CN)_(4)]^(4-)-Ni` is in zero oxidation state. The `CN^(-)` is strong field ligand and , therefore, rearrangement of electrons occur. .
So, `[Ni(CN)_(4)]^(4-)" `
`[Ni(PPh_(3))_(3)Br]-Ni` is in+1 oxidation state with `3d^(9)` configuration (`PPh_(3)` is a strong field ligand ).
So, `[Ni(PPh_(3))_(3)Br]`" "
`[Ni(dmg)_(2)]-Ni` is in +2 oxidation state with `3d^(8)` configuration .(dmg is a chelatin ligand ).