Question

define hybridization state the hybridisation and the shape of PCL5 and sf6

Answer 1

According to VSEPR theory, a molecule with five bonding pairs must have both a trigonal bipyramidal electron geometry and molecular geometry


The
P
atom needs five orbitals to form the five
P-Cl
bonds.

It has a
3s
and three
3p
orbitals, so it must use one of its
3d
orbitals to form the fifth bond.

These orbitals are hybridized to form five
sp
3
d
orbitals that (surprise!) just happen to point in the right directions to form a trigonal bipyramid

Answer 2

PCl5-sp3d,trigonal bipyramidal
SF6-sp3d2,octahedral