Question

The hybridisation of the central atom in $ Br{{F}_{5}} $ molecule is

• A. $ s{{p}^{3}} $
• B. $ ds{{p}^{2}} $
• C. $ s{{p}^{3}}{{d}^{2}} $
• D. $ {{d}^{3}}s{{p}^{3}} $

Answer 1

Answer: (C)

In $ Br{{F}_{5}}, $ there are seven electrons in the valence shell of the central Br-atom. Five out of these are shared with fluorine atoms. Thus. there are five bond pairs and one lone pair. Hence, the hybridisation is $ s{{p}^{3}}{{d}^{2}} $ and shape is square pyramidal.