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 is a molecule consisting of three oxygen atoms (O3). This is different from the oxygen we breathe, which has two oxygen atoms (O2). The third atom makes ozone highly reactive.

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