A) it dissociates and release oxygen
B) do not leave any foul smell like chlorine
C) kills bacteria, cyst, fungi and acts as a biocide
D) All of the above
Correct Answer: D
Solution :
Ozone is used for purifying water because ozone kills the bacteria, cysts, fungi, mold, parasites, viruses, contaminates etc. It is one of the effective way of eliminating microorganism in the water. Ozone is most effective oxidarit (secondary to \[{{F}_{2}}\]). It inactivates and oxidises organic matter, contaminates, pesticides, viruses and bacteria faster than chlorine. Ozone do not form TMH which have unpleasant odour and also carcinogenic. Ozone is very good biocide. Ozone also absorbs UV radiation.
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