Ozone is nonreactive and stable. TRUE FALSE

• A. True
• B. Not sure
• C. False
• D. It depends

Answer: (C)

Ozone is a powerful oxidant that reacts readily with a wide range of substances and does not stay inert or stable for long. In water, it quickly attacks organic compounds, double bonds, sulfides, amines, and other functional groups, transforming them into oxidation products while often breaking bonds in the process. Its lifetime is short and it decomposes toward oxygen, especially in the presence of contaminants or sunlight. Because of this reactivity, the statement that ozone is nonreactive and stable is false.