Which of these chemicals are used to clean water in a water treatment plant?
Ozone
Chlorine tablets
Both ozone and chlorine tablets
Sulphur
Ozone and chlorine tablets are used to clean water in a water treatment plant. These chemicals act as disinfectants.
Drinking water cab be made absolutely safe by adding some:
(a) aspirin tablets
(b) iodine tablets
(c) chlorine tablets
(d) chlorophyll tablets
Question 9 Which of the following procedures will give you water free from all impurities? (a) Adding chlorine tablets (b) Distillation (c) Boiling (d) Filtration
why trekkers and mountaineers usually carry chlorine tablets with them?