Describe the shapes of BF_(3)" and "BH_(4)^(-). Assign the hybridisation of boron in these species.

Describe the shapes of BF_(3)" and "BH_(4)^(-). Assign the hybridisati

1.	Describe the shapes of BF_(3)" and "BH_(4)^(-). Assign the hybridisation of boron in these species.
Answer» Solution :In `BF_3`, boron ATOM is in a STATE of `sp^2` hybridisation. Therefore, `BF_3` is a trigonal planar molecule. In `BH_4^-`, boron atom is in a state of `sp^3` hybridisation. Therefore, `BH_4^-` has TETRAHEDRAL GEOMETRY.