Question

Which one of the following is not used for disinfection of drinking water?

• A. Chlorine
• B. Ozone
• C. Chloramine
• D. Phenyl

Answer 1

The correct option is D

Phenyl

Chlorination is the process of adding chlorine to drinking water to disinfect it and kill germs. Ozone is sometimes used as it has a greater disinfection effectiveness against bacteria and viruses compared to chlorination. Chloramination is usually used as an alternative to chlorination. Chloramines are a group of chemical compounds that contain chlorine and ammonia. But, phenyl is not used as a disinfectant for drinking water.