question_answer

 Which of the following molecules has pyramidal shape [DCE 2004; J&K CET 2005]

A)                 \[PC{{l}_{3}}\]  

B)                 \[S{{O}_{3}}\]

C)                 \[CO_{3}^{2-}\]               

D)                 \[NO_{3}^{-}\]

Correct Answer: A

Solution :

           In \[PC{{l}_{3}}\]molecule, phosphorous is \[s{{p}^{3}}-\]hybridised but due to presence of lone pair of electron, it has pyramidal structure