Question

oxidation number of O in acetic acid

Answer 1

The first carbon in acetic acid, or CH3COOH , has an oxidation number of -3 . Now, when you assign oxidation number, you have to keep in mind the fact that the more electronegative atom will take both the electrons from a bond in forms with a less electronegative atom

Answer 2

in acetic acid oxidation no of O is 2