Question

The $O-N-O$ angle is maximum in:

• A. $HN{O}_3$
• B. $N{O}_2^{+}$
• C. $HN{O}_2$
• D. $N{O}_2$

Answer 1

The correct option is B $N{O}_2^{+}$

The $O-N-O$ bond angle is maximum in $N{O}_2^{+}$.
The central nitrogen atom in $HN{O}_3$, $N{O}_2^{+}$, $HN{O}_2$ and $N{O}_2$ underoges $s{p}^2$, $sp$, $s{p}^2$ and $s{p}^2$ hybridization respectively. Hence, the approximate bond angles are ${120}^o$, ${180}^o$, ${120}^o$ and ${120}^o$ respectively.