QAIPMT-2010-Ch-2020: NEET 2010 Chemistry - Class 11 AIPMT-2010-Ch-2020 Solution: In which one of the following species the central atom has the…

The hybridisation of the central atom can be calculated as H = 1 2 [ ( N o . o f e l e c t r o n s i n v a l e n c e s h e l l o f a t o m ) + ( N o . o f m o n o v a l e n t a t o m s a r o u n d c e n t r a l a t o m ) _ ( C h arge o n c a t i o n ) + ( C h arge o n a n i o n ) ] Applying that formula we find that all the given species except [SbCl 5 ] 2- have central atom with sp 3 d ( corresponding to H = 5) hybridisation. In [SbCl 5 ] 2- Sb is sp 3 d 2 hybridized.