All the following complexes show decrease in their weights when placed in a magnetic balance then the group of complexes having tetrahedral geometry is :
`Ni(CO)_(4)`
`K[AgF_(4)]`
`Na_(2)[Zn(CN)_(4)]`
`K_(2)[PtCl_(4)]`
`[RhCl(PPh_(3))_(3)]`

Options

A. (ii), (iii),(v)
B. (i), (II), (iii)
C. (i), (III), (iv)
D. None of these

Explanation

(D), (A), (B) and ( C) `dsp^(2)` hybridisation while (D) is `sp^(3+). Cl^(-)` is weal field ligand, so `[NiCl_(4)]^(2-)`
`Ni(CO)_(4)-sp^(3)` (CO strontg field ligand) , `[AgF_(4)]^(-)-dsp^(2)(4d^(8))m[Zn(CN)_(4)]^(2)-sp^(3)(3d^(10))[PtCl_(4)]^(2)-dsp^(2)(4d^(8))`
All complexes are diamagnetic in nature which show decrease in their weights in magnetic field.