question_answer

Which of the following does not have a lone pair on the central atom?

A) \[N{{H}_{3}}\]                  

B) \[P{{H}_{3}}\] 

C) \[B{{F}_{3}}\]                    

D) \[PC{{l}_{3}}\]

Correct Answer: B

Solution :

\[B{{F}_{3}}\]is a electron deficient compound. So it has no lone pair orbital over B atom.