Question

The $ONO$ angle is maximum in

• A. $NO^-_3$
• B. $NO_2$
• C. $NO^-_2$
• D. $NO^+_2$

Answer 1

Answer: (D)

$NO^+_2$

Answer 2

The bond angle is maximum in $NO _{2}^{+}\left(180^{\circ}\right)$. $NO _{3}^{-}$-In $NO _{3}^{-}, N$ atom undergo $s p^{2}$-hybridisation. Each oxygen atom also has $s p^{2}$-hybridisation. The ion has trigonal planar geometry with bond angle $120^{\circ}$. NO $_{2}^{2-}-$ It has angular geometry $\left(s p^{2}\right.$ hybridisation) due to presence of lone pair of electron on $N$ atom. Bond angle $116^{\circ}$. $N O _{2}$-It has angular geometry ( $s p^{2}$ hybridisation), bond angle $134^{\circ}$. $N O _{2}^{+}$-Nitronium ion has linear structure (sp hybridisation) with bond angle $180^{\circ}$.