Chemical Bonding And Molecular Structure Question 458
Question: The formation of molecular complex $ BF_3-NH_3 $ results in a change in hybridization of boron
Options:
A) from $ sp^{2} $ to $ dsp^{2} $
B) from $ sp^{2} $ to $ sp^{3} $
C) from $ sp^{3} $ to $ sp^{2} $
D) from $ sp^{3} $ to $ sp^{3}d $
Show Answer
Answer:
Correct Answer: B
Solution:
- In $ BF_3 $ , B is $ sp^{2} $ hybridized with one empty $ p_{z} $ orbital. The empty $ p_{z} $ orbital of $ BF_3 $ can be filled by lone pair of molecules such as $ NH_3 $ . When this occurs a tetrahedral molecule or ion is formed which is $ sp^{3} $ hybridized.
