Question

The oxidation state of $N$ in nitrogen sesquioxide is:

• A. $+1$
• B. $+2$
• C. $+3$
• D. $+5$

Answer 1

The correct option is C $+3$

Let oxidation state of $N$ in nitrogen sesquioxide $\left(N_2{O}_3\right)$ is $x.$
$2x+3\times (-2)=02x-6=02x=6x=+3$

Hence, option (c) is the correct answer.