Hybridisation involves the mixing of orbitals having comparable energhies of same atom. Hybridised orbitals perform efficient overlapping than overlapping by pure s, p or orbitals. Consider the following compounds and select the incorrect statement from the following : NH_(3),PH_(3),H_(2)S,SO_(2),BF_(3),PCl_(3),IF_(7),P_(4),H_(2)

Hybridisation involves the mixing of orbitals having comparable energh

1.	Hybridisation involves the mixing of orbitals having comparable energhies of same atom. Hybridised orbitals perform efficient overlapping than overlapping by pure s, p or orbitals. Consider the following compounds and select the incorrect statement from the following : NH_(3),PH_(3),H_(2)S,SO_(2),BF_(3),PCl_(3),IF_(7),P_(4),H_(2)
Answer» Six molecules out of given compounds involves hybridisation Three molecules are hypervalent compounds Six molecules out of above compounds are non-planar in STRUCTURE TWO molecules out of given compounds involves `(d pi- p pi)` BONDING as well as also involves `( p pi- p pi)` bonding Solution :(a) INVOLVEMENT of hybridisation `(NH_(3),SO_(2),SO_(3),BF_(3), PCl_(3),IF_(7))` (b) Hypervalent compounds `(SO_(2),SO_(3),IF_(7))` (C ) Non-planar molecules `(NH_(3),PH_(3),PCl_(3),IF_(7),P_(4))` (d) `SO_(2)` [one(` p pi- p pi`) bond and one `(d pi- p pi)` bond], `SO_(3)` [ one `(p pi-p pi)` bond and two `(d pi - p pi)` bonds]