Question

c+o2=co2 what is the oxidation number of o2​

Answer 1

Answer:

oxidation number of oxygen is mostly -2 except compound with fluorine.

c+ o2 = co2

here we have 2 oxygen then = 2(-2) =-4

NOTE:

co2 ,nacl.... are netural compounds and they add upto charge 0.

co2 = +4-4 = 0

nacl = +1-1 = 0

For further. see wayne bresly in u tube