Select the inappropriate statement about Chlorination of water
Chlorine best act at as a a disinfectant when the pH of water is7 because of predominance of Hypochlorous acid. 2.5mg bleaching powder can disinfect 1000 L of water. Chlorine has no effect on spores, cyst, ova, Hep. A, Polio virus, cyclopes. Remaining all options given are true.
Chlorine best act at pH 7.2 of water
The minimum recommended concentration of free chlorine is 0.5 mg/L for one hour
Hypochlorous acid play main role in disinfection
Chloroscope instrument is used to measure residual chlorine
Water