JEE Advanced2008ChemistryCoordination CompoundsActual
Both [ Ni ( CO )₄ ] and [ Ni ( CN )₄ ]²⁻ are diamagnetic. The hybridisations of nickel in these complexes, respectively, are
Options
- As p^3, s p^3
- Bs p^3, d s p^2
- Cd s p^2, s p^3
- Dd s p^2, d s p^2
Correct answer
B. s p^3, d s p^2
Step-by-step solution
In [ Ni ( CO )₄ ] , the oxidation state of Ni is zero (0) . Ni (28)[ Ar ] 4 ~s ^2, 3 d^8 CO is a strong ligand, causes coupling, thus In [ Ni ( CN )₄ ]²⁻ , the oxidation state of Ni is +2 Ni ²⁺=[ Ar ] 3 d^8, 4 s^0 CN ⁻ is strong ligand causes coupling.