Question

in which of the following molecules would you expect real bond angles to deviate from ideal?

Please explain how to determine this.

a) CO3^2-

b) CF4

c) SO3

d) ICl2+

e) PCl5

Answer 1

answer : d) ICl2+

explanation:

a) CO3^2- : it is perfectly planar so its bond angle is 120o

b) CF4 : it is perfecctly tetrahedral so its bond angle is 109.5o

c) SO3 : it is perfectly planar so its bond angle is 120o

d) ICl2+ : I is in sp3 hybridization . and the bond angle should be 109.5o. but due to bond pair and lone pair repulsion the bond angle deviated from ideal . and it is bent shape not tetrahedral shape

e) PCl5 : it is trigonal bi pyramidal and bond angles 90 and 120 ideal