Oxygen has (+) oxidation number only in

A. OF₂

B. C₁₂O

C. H₂O (2)

D. N₂O

Answer: Option A

Solution(By Examveda Team)

In case of OF₂, oxygen is not the most electronegative element. The fluorine is more electronegative and has an oxidation state of -1. In this case, the oxygen has an oxidation state of +2.