Question

The compound of nitrogen in which nitrogen carries a fractional oxidation state is:

• A. $H{N}_3$
• B. $F_{3}N$
• C. $F_2{N}_2$
• D. none of the above

Answer 1

The correct option is A $H{N}_3$

Let the oxidation state of $N$ be x. Calculating the oxiddation of $N$ in the following compounds as:

A. $H{N}_3$: $1+3\times x=0$ or $x=-1/3$

B.$F_{3}N$:$3\times (-1)+x=0$ or $x=3$

C.$F_2{N}_2$: $2\times (-1)+2\times x=0$ or $x=1$

Therefore in $H{N}_3$ the oxidation state of $N$ is fractional.

option A is correct