Question

Draw shapes of the molecule based on vsper theory of bf3

Answer 1

   ANS ]shape ;  Yshape  

lewis structure :

                           F   -   B    -   F

                                     I

                                     F

y shape due angle and lone pair and bond pair repulsions difference .there is link between lewis structure and shape.tigonal geometry for 3 shape determining electron pairs.

hope this may help u mate