Multiple choice

What is the number of oxygen atoms present in an ozone molecule?

  1. 1

  2. 2

  3. 3

  4. 4

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ozone has the chemical formula O3, meaning it consists of three oxygen atoms bonded together. It is an allotrope of oxygen, different from the O2 form we breathe.