Previous year MCQs

General science UPPSC 2016 GS-I
Question

Which of the following is/are used as disinfectant of water?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: All of the above

Detailed Solution:

The correct answer is “All of the above”.
Ozone (O3) is a powerful oxidizing agent that can effectively disinfect water by destroying various microorganisms and contaminants. It is commonly used in water treatment plants.

Chlorine dioxide (ClO2) is another effective disinfectant that can eliminate bacteria, viruses, and other pathogens in water. It is often used as an alternative to chlorine due to its lower potential to form harmful disinfection byproducts.

Chloramine is a compound formed by the combination of chlorine and ammonia. It is also used as a disinfectant in water treatment, particularly to maintain disinfection residuals in the distribution system.

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