MHT CET202122 Sep 2021Morning ShiftChemistryCoordination CompoundsActual
What type of hybridization is present in Ni of [ Ni ( Cl )₄ ]²⁻ and [ Ni ( CN )₄ ]²⁻ respectively?
Options
- Adsp ^2 and dsp ^2
- Bsp ^3 and dsp ^2
- Cdsp ^2 and sp ^3
- Dsp ^3 and sp ^3
Correct answer
B. sp ^3 and dsp ^2
Step-by-step solution
In [ NiCl ₄ ]²⁻ Ni is in +2 oxidation state Ni ⁺² [ Ar ] 3 ~d ^8 Hybridization involved is sp ^3 as participating orbitals are 4 ~S & 4 P In [ NiCN ₄ ]²⁻ Ni is in 2+ oxidation state. Ni ⁺² [ Ar ] 3 ~d ^8 CN ⁻ is strong field ligand. It causes pairing of 3 ~d electrons. Hybridization involved is dsp ^2 as participating orbitals are 3 ~d , 4 ~S and 4 P .