Question

An atom in a molecule has electrons in $1s,2s,2p,3s,3p,3d$ and $4s$ orbitals. This atoms can undergo hybridisations of type

• A. $s{p}^3{d}^2,s{p}^3,p^{3}ds$
• B. $d^{2}s{p}^3,p^{2}ds,ds{p}^2$
• C. $s{p}^3,ds{p}^2,d^{2}s{p}^3$
• D. $s{p}^3,ds{p}^2,dsp$

Answer 1

Answer: (C)

An atom in a molecule has electrons in $1s,2s,2p,3s,3p,3d$ and $4s$ -orbitals. Thus, the outermost most valence shell composed of $3d$ -orbitals.

$3d$ -orbitals can form inner and outer orbital complex depending upon the types of ligands present.

It can undergoes hybridisation of type $s{p}^3$

$($ e.g. ${\left[NiC{l}_4\right]}^{2-}),ds{p}^2($ e.g ${\left[Ni(CN{)}_4\right]}^{2-}),s{p}^3{d}^2$

$($ e.g. ${\left[Co{F}_6\right]}^{3-}{d}^{2}s{p}^3($ e. $g\cdot {\left[Cr{\left(N{H}_3\right)}_6\right]}^{3+})$

$ds{p}^3($ e. $g\cdot \left[Fe(CO{)}_5\right]$