The correct option is
A XeF2,IF−2Hybridization can be calculated by finding out the steric number for any molecule. The molecules having the same hybridisation have the same geometry.
Option (a)
Steric number of
XeF2 = 2 + 3 = 5
(2 bond pairs and 3 lone pairs)
Steric number of
IF−2 = 2 + 3 = 5
(2 bond pairs and 3 lone pairs)
In
XeF2, Xe is
sp3d hybridized and linear in shape due to the presence of three lone pairs on the
Xe atom (lone pairs occupy the equatorial positions).
![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/747944/original_img17.png)
In
IF−2,
I atom is also
sp3d hybridized and is linear in shape due to the presence of three lone pairs on the
I atom.
Option (b) The steric numbers of nitrogen and boron in
NH3 and
BF3 are 4 and 3 respectively. So, different structures are observed.
Option (c) The steric numbers of carbon and sulfur in
CO2−3 and
SO2−3 are 3 and 4 respectively. So, different structures are observed.
Option (d) The steric numbers of phosphorous and iodine in
PCl5 and
ICl5 are 5 and 6 respectively. So, different structures are observed.