Question

Consider the following Lewis Dot structure:

${[:\ddot{O}=N=\ddot{O}:]}^{+}$

The sum of formal charges on $N$ and $O$ is:

Answer 1

Formal Charge = [valence electrons on atom] $-$ [non-bonded electrons + number of bonds].

Formal charge on $N=5-[0+4]=+1$

Formal charge on $O=6-[4+2]=0$

Therefore, the sum of the formal charges on $N$ and $O$ atoms is $=1+0=1$

So, the correct answer is $1$