Question

Explain the geometry of ${\left[Co\right(M{H}_3{)}_6]}^{2+}$ on the basis of hybridization. (Z of Co$=27$).

Answer 1

The valence shell electronic configuration of $C{o}^{2+}$ ion is $3d^7$. It undergoes $s{p}^3{d}^2$ hybridisation which results in octahedral geometry.