[NiCl_(4)]^(2-)" में "Ni" का संकरण है "

[NiCl_(4)]^(2-) is an outer orbital complex. Give: (1) the type of hybridisation in Ni^(2+) (2) the orbitals involved in hybridisation.

[Ni(CN)_(4)]^(2-)" and "[NiCl_(4)]^(2-) have similarity but not in :

[Ni(NH)_(4)]^(2-) is diamagnetic but [NiCl_(4)]^(2-) is paramagnetic. Give the hybridisation of Ni^(2+) in the given complex ions.