The statement true for `N_(3)^(-)` is

Options

A. It has a non-linear structure
B. It is called pseudo halogens
C. The formal oxidation state of N in this anion is -1
D. It is isoelectronic with `NO_(2)`

Answer

C

Explanation

Azide ion is linear. It is called a pseudo halide ion. The formal charge of N in `N_(3)^(-)` is-1 because in any of the resonating structures, the net charge on the ion is -1
`[:overset(2-)overset(* *) underset(* *)N- underset(* *)overset(+)N-=N: to: N-= underset(* *) overset(+)N-overset(2-) overset(* *) underset(* *)N : to overset(-)overset(* *) N=overset(+)N=overset(-) overset(* *)N:]`