Question

Which one of the following represents the correct state of hybridisation of P in $PC{l}_5$?

• A. $s^0{P}^3$
• B. $s{p}^{3}d$
• C. $s^2{p}^3$
• D. $s{p}^2{d}^2$

Answer 1

The correct option is B $s{p}^{3}d$

Outer EC of P in ground state $(Z=15)=3s^{2}3p^3$
$\therefore$ It undergoes $s{p}^{3}d$ hybridisation with trigonal bipyramidal shape.