A.0.05 to 0.2 ppm
B.0.2 to 0.8 ppm
C.1 ppm to 2 ppm
D.6 ppm to 10 ppm
E.10 ppm to 20 ppm
Related Mcqs:
- The process of killing the ineffective bacteria from the water and making it safe for use is known as
- The process of kolling at the pathogenic bacteria of water-borne diseases to make it safe for hospital use, is known as
- The total count of bacteria in portable water should not exceed
- The bacteria, which reduce nitrates in the soil to gaseous nitrogen, are known as denitrifying bacteria such as:
- Residual magnetism is
- The bactericidal, virucidal and cysticidal efficiency of chlorine as a disinfectant
- The residual stresses in casting occur due to
- The quantity of chlorine in ppm required to satisfactorily chlorinate sewage is usually
- One atom of chlorine can destroy over ________________ molecules of ozone.
- The principal raw material for the production of chlorine gas by mercury electrolytic cell is
