Question

Maximum bond angle at nitrogen is present in which of the following?

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

Answer 1

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

In the following table:

Molecule	Number of bonding domains	Number of lone pairs	Hybridization	Bond angle predicted from hybridization
$N{O}_2^{+}$	2	0	$sp$	${180}^0$
$N{O}_3^{-}$	3	0	$s{p}^2$	${120}^0$
$N{O}_2$	2	1	$s{p}^2$	${120}^0$
$N{O}_2^{-}$	2	1	$s{p}^2$	${120}^0$

The maximum bond angle at nitrogen is present in ${N{O}_2}^{+}$
Note: Where lone pair - bond-pair repulsion is present, the actual bond angle will be lower than the predicted value.