Question

The statement true for $N_3^-$ is

• A. it has a non-linear structure
• B. it is called pseudohalogen
• C. the formal oxidation state of nitrogen in this anion is + 1
• D. it is isoelectronic with $NO_2$

Answer 1

Answer: (C)

the formal oxidation state of nitrogen in this anion is + 1

Answer 2

The electronic structure of azide ion $\left( N _{3}^{-}\right)$is a resonance hybrid of the following structure Thus $N _{3}^{-}$ion has a linear symmetrical structure, since all atoms lie in a straight line. $N _{3}^{-}$is iso-electronic with $N _{2} O$ (22e $^{-}$)