6 Answers

+4

4

let the oxidation number of carbon X.
the sum of the oxidation number of a neutral molecule is zero.by using this assumption
X+(2)+(2*1)=0
X=+4

Oxidation number of oxygen is 2.
O.N of Cl2 is 2*1 = 2
let the O.N of C be x, then,
x + (2) + (2)=0
(since the net O.N is 0)
or, x 4=0
Therefore x=4.

The total charge of the molecule must be 0, so the sum of the charges of each of the atoms should be 0.
The charge of oxygen is 2 and the charge of each Chlorine is 1
The charge of the carbon must be 4 so that the negative charges of the other atoms are canceled out.

let ON of c be x.
x+(2)+(2*1)=0
X=+4