Question

Some of the properties of the two species, $N{O}_3^{-}$ and $H_3{O}^{+}$ are described below. Which one of them is correct?

• A. Isostructural with same hybridization for the central atom
• B. Isostructural with different hybridization for the central atom
• C. Similar in hybridization for the central atom with different structures
• D. Dissimilar in hybridization for the central atom with different structures

Answer 1

Answer: (D)

In $N{O}_3,H=\frac{1}{2}[5+0-0+1]=3$
Thus, in $N{O}_3^{-}$, the central atom is $s{p}^2$ hybridized and it has trifocal planar geometry.
In $H_3{O}^{+}$,
$H=\frac{1}{2}[6+3-1+0]=4$
Thus, $O$ is $s{p}^3$ hybridised in $H_3{O}^{+}$and $H_3{O}^{+}$has pyramidal geometry due to the presence of one Ione pair of electrons.