How is chlorination done to purify water?
By adding chlorine tablets
By adding bleaching powder
By adding chlorine dioxide
All of the above
Chlorination can be done by adding chlorine tablets, bleaching powder or chlorine dioxide in water.
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