question_answer 1)

Describe the shapes of \[B{{F}_{3}}\]and \[{{[B{{F}_{4}}]}^{-}}\]. Assign the hybridization of boron in these species.

Answer:

In\[B{{F}_{3}}\], boron is\[s{{p}^{2}}-hybridized\], therefore, it has a planar shape. On the other hand, in \[{{[B{{F}_{4}}]}^{-}}\] the boron is \[s{{p}^{3}}-hybridized\]and hence, \[BF_{4}^{-}\] has a tetrahedral shape. Planar \[(s{{p}^{2}}-hybridized)\] Tetrahedral \[(s{{p}^{3}}-hybridized)\]