question_answer

Which of the following has \[p\pi -d\pi \] bonding?

A) \[NO_{3}^{-}\]                        

B) \[SO_{3}^{2-}\]

C) \[BO_{3}^{3-}\]                      

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

Correct Answer: B

Solution :

[b] \[p\pi -d\pi \] bonding is present in \[SO_{3}^{2-}\], N, B, C have no vacant d atomic arbitals.