Question

Axial d-orbital(s) is/are used in the hybridisation of-

• A. $S{F}_6$
• B. $PC{l}_5$
• C. $Xe{F}_5^{+}$
• D. All of these

Answer 1

Answer: (D)

Sulphur in $S{F}_6$ is $s{p}^3{d}^2$ hybridised.

$d-$ orbitals used are $d_{x^2-y^2}\&d_{z^2}$ (both axial d-orbitals)

wrt option $b,$ phosphorous in $PC{l}_5$, is $s{p}^{3}d$ hybridised. Here, $d$ orbital used is $d_{z^2}$ (axial).

wrt option $c,Xe$ in $Xe{F}_5^{+}$ is $s{p}^3{d}^2$ hybridised. $d$ -orbitals used are $d_{x^2-y^2}\&d_{z^2}$ (axial).