Q. Amongst $NO^{-}_{3}, AsO^{3-}_{3}, CO^{2-}_{3}, ClO^{-}_{3}, SO^{2-}_{3}$ and $BO^{3-}_{3}$ the non-planar species are
Solution:
Species
Hybridisation
Geometry
Number of lone pairs
$NO _{3}^{-}$
$s p^{2}$
Trigonal
Zero
$AsO _{3}^{3-}$
$s p^{3}$
Pyramidal
One
$CO _{3}^{2-}$
$s p^{2}$
Trigonal
Zero
$ClO _{3}^{-}$
$s p^{2}$
Pyramidal
One
$SO _{3}^{2-}$
$s p^{3}$
Pyramidal
One
$BO _{3}^{3-}$
$s p^{3}$
Pyramidal
One
| Species | Hybridisation | Geometry | Number of lone pairs |
|---|---|---|---|
| $NO _{3}^{-}$ | $s p^{2}$ | Trigonal | Zero |
| $AsO _{3}^{3-}$ | $s p^{3}$ | Pyramidal | One |
| $CO _{3}^{2-}$ | $s p^{2}$ | Trigonal | Zero |
| $ClO _{3}^{-}$ | $s p^{2}$ | Pyramidal | One |
| $SO _{3}^{2-}$ | $s p^{3}$ | Pyramidal | One |
| $BO _{3}^{3-}$ | $s p^{3}$ | Pyramidal | One |