Question

Arrange on basis of bond angle and give reason too :NH3,NF3,BF3​

Answer 1

Bond angle in increasing order _

BF3>NF3>NH3

NH3 contains a lone pair electron and due to lone pair -bond pair repulsion, the bond angle in nh3 in lowest.

as we know that, lone pair -lone pair repulsion >lone pair -bond pair repulsion> bond pair -bond pair repulsion