d chemical vch iz nt a disinfectant of water iz-
1. chlorine tablet
2. UV rayz
3. alum
4. potassium permangnate
Alum is used as a precipitating agent for the impurities present in water so, it is not a disinfectant.
d chemical vch iz nt a disinfectant of water iz-
1. chlorine tablet
2. UV rayz
3. alum
4. potassium permangnate
Alum is used as a precipitating agent for the impurities present in water so, it is not a disinfectant.