question_answer

Which of the following species contains three bond pairs and one lone pair around the central atom?

A) \[{{\text{H}}_{\text{2}}}\text{O}\]                         

B)        \[\text{B}{{\text{F}}_{3}}\]                        

C) \[\text{NH}_{2}^{-}\]                    

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

Correct Answer: D

Solution :

\[{{H}_{2}}O\Rightarrow \]  [bp = bond pairs and Ip = lone pair]                     Thus, in \[PC{{l}_{3}}\], the central atom P has three bond pairs and one lone pair.