Question

Oxidation number of oxygen atom in $O_3$ molecules is:

• A. $0$
• B. $-2$
• C. $+2$
• D. $+1$

Answer 1

The correct option is A $0$

Its common name is ozone and plays a very important role of protecting earth from harmful UV rays by forming its blanket around earth.

average oxidation state$=\frac{-1+1+0}{3}=0$