Question

Is there any change in hybridization of B and N as a result of the reaction? (L-III) BF3 + NH3 → BF3.NH3

Answer 1

In this reaction NH3 donates its lone pair to a lewis acid BF3 but acting itself as a lewis base .
As we know hybridisation only depends on no.of lone pairs and sigma bond pairs ,so the hybridisation of NH3 remains unchanged but in case of BF3 it changes to sp³.

Answer 2

Answer:

Carbon makes four bonds in ethane so it requires 4 hybrid orbitals. One s-orbital and 3 p-orbitals constitutes for bonding to form sp3 hybridization. In case ethene, carbon makes three bonds so it requires 3 orbitals which constitutes to form sp2 hybridization.