What is an advantage of using chlorine gas to disinfect drinking water supplies?
A)It provides residual protection against pathogens.
B)It gives the water a fresh taste.
C)Residual chlorine in water helps to whiten teeth.
D)Excess chlorine is absorbed in our bodies as a mineral supplement.

Question

Quizplus · Accepted Answer

Chlorine gas provides residual protection against pathogens, meaning it continues to kill bacteria and viruses even after it has been added to the water supply. This helps to ensure that the water remains safe to drink for longer periods of time. The other options listed are not true advantages of using chlorine gas for disinfection.

What Is an Advantage of Using Chlorine Gas to Disinfect