Assertion (A) is true because ozone (O3) is a powerful oxidizing agent used for disinfection of water, effectively killing microorganisms like bacteria and viruses. Reason (R) is true because ozone, an allotrope of oxygen, is not radioactive; radioactivity relates to the instability of atomic nuclei. However, ozone's ability to kill microorganisms stems from its strong oxidizing property, not from its non-radioactivity.
Consider the following assertion and reason and select the correct answer from the code given below: Assertion (A) : Ozone kills mlcroorganism in water. Reason (R) : Ozone is not radioactive . Codes :
Asked in UPPSC Upper Mains 2013 · Topic: Non-metals (Oxygen: Occurrence, preparation, properties, Allotropes (Ozone), and Oxides)
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Answer: B. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
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