What is the oxidation number of the oxygen atom in O₂^2-? A) -2 B) -1 C) +1 D) +2

Question

Quizplus · Accepted Answer

The oxidation number of oxygen is usually -2, except in peroxides (where it is -1) or when combined with more electronegative elements such as fluorine (where it can be positive). There are no indications in the given chemical formula that suggest any exceptions to the usual -2 oxidation number for oxygen, so the answer must be -1.

What Is the Oxidation Number of the Oxygen Atom in O22-

What Is the Oxidation Number of the Oxygen Atom in O₂^2-