3843Chemical EngineeringMedium
Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of________?
AChlorine or its compounds
BOzone and iodine
CUltraviolet light for irradiation of water
DAll A., B. & C.
Correct answer
D. All A., B. & C.
Explanation
The correct answer is All A., B. & C..