The species having tetrahedral shape is

Options

A. `[PdCl_(4)]^(2-)`
B. `[Ni(CN)_(4)]^(2-)`
C. `[Pd(CN)_(4)]^(3-)`
D. `[NiCl_(4)]^(2-)`

Answer

D

Explanation

The greater the ease with which the ligand can approach the central ion, the greater is the crystal field splitting caused by it .
The magnetic measurements of the complex `[NiCl_(4)]^(2-)` show that it is paramagnetic and has two unpaired electros. Evidently in this case, the 3d-orbitals remain undisturbeb and `sp^(3)` hybridisation occurs resulting in tetrahedral structure of the complex.

Here XX represents electron pairs donated by `Cl^(-)` ions.