Q. Which of the following is not used for disinfection of drinking water ?
A) Phenyl
B) Chloramine
C) Chlorine
D) Ozone
Explanation
[Solution from source] Phenyl (a phenolic disinfectant) is toxic and is used only on floors and drains, never in drinking water. Chlorine, chloramine and ozone are standard disinfectants for drinking water. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.