Question

Both [Ni(CO)₄] and [Ni(CN)₄]²⁻ are diamagnetic. The hybridisations of nickel in these complexes, respectively, are
(a) sp³, sp³
(b) sp³, dsp²
(c) dsp², sp³
(d) dsp², sp²

Answer 1

(b) as CN is strong ligand dan CO it obtains dsp2 hybridisation while the other wil be sp3 hybridisation