Question

give the formula and describe the structure of a nobel gas species which is isostructural with IF6-​

Answer 1

Explanation:

(i) XeF

4

is isostructural with ICl

4

−

. It is square planar due to sp

3

d

2

hybridization which results in octahedral geometry with two lone pairs occupy opposite positions.

(ii) XeF

2

is isostructural with IBr

2

−

. It has a linear shape due to sp

3

d hybridization which results in trigonal bipyramidal geometry with 3 lone pairs in equatorial plane.

(iii) XeO

3

is isostructural with BrO

3

−

. It has a pyramidal shape due to sp

3

hybridisation with terahedral geometry in which one position is occupied by a lone pair.