A) \[PC{{l}_{3}}\]
B) \[S{{O}_{3}}\]
C) \[CO_{3}^{2-}\]
D) \[NO_{3}^{-}\]
Correct Answer: A
Solution :
\[PC{{l}_{3}}\Rightarrow 3\,bp+1\,lp\Rightarrow \]pyramidal geometry \[S{{O}_{3}}\Rightarrow 3\,bp+0\,lp\Rightarrow \]trigonal planar geometry \[CO_{3}^{2-}\Rightarrow 3\,bp+0\,lp\Rightarrow \]trigonal planar geometry \[NO_{3}^{-}\Rightarrow 3\,bp+0\,lp\Rightarrow \]trigonal planar geometry
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