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  4. Both [Ni(CO)4] and [Ni(CN)4]2- are diamagnetic. The hybridisations of nickel in these complexes respectively, are

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Q. Both $[Ni(CO)_4] $ and $[Ni(CN)_4]^{2-} $ are diamagnetic. The hybridisations of nickel in these complexes respectively, are

IIT JEEIIT JEE 2008Coordination Compounds

Solution:

In $Ni(CO)_4, Ni $ is $sp^3-$ hybridised while in $[Ni(CN)_4]^{2-}, Ni^{2+} $ is $dsp^2-$ hybridised.