question_answer

The shapes of \[NO_{3}^{-}\] and \[NO_{3}^{-\,\,-}\] are

A)  triangular planar 

B)  tetrahedral and triangular planar respectively

C)  tetrahedral                                       

D)  angular and triangular planar respectively

Correct Answer: A

Solution :

                                 Structure of \[NO_{3}^{-}\] is \[H=\frac{V+M-C+A}{2}=\frac{5+1}{2}=\frac{6}{2}=3\] \[Hybridisation = s{{p}^{2}}\] \[\operatorname{Shape} = triangular planar\] Structure of \[CO_{3}^{-\,\,-}\] is \[H=\frac{V+M-C+A\text{ }}{2}\,\,=\,\,\frac{4+2}{2}\,\,=\,\,3\] \[Hybridisation = s{{p}^{2}}\] \[\operatorname{Shape} = triangular planar\]