Question

discuss the steriochemistry of BF3 on the basis of hybridisation​

Answer 1

BF3 is SP2 hybridization. For this molecule, It is SP2 because one π (pi) bond is required for the double bond between the Boron and only three σ bonds are formed per Boron atom. The atomic S – orbitals and P – orbitals in Boron outer shell mix to form three equivalent SP2 hybrid orbitals.