What is the formal charge on carbon atom in the following two structures :

Options

A. `0, -2`
B. `0,0`
C. `+2,-2`
D. `+1,-1`

Answer

B

Explanation

`:overset(..)(S) =C = overset(..)(S) :`
Formal charge on C atom = Valence electrons
- Lone pair of electrons ` - 1/2 xx` Bonding electons ` = 4 - 0 - 1/2 xx 8 = 0`
Similarly formal charge on C atom = 0