*/*_The disinfection efficiency of chlorine increases by (i) Decreasin – McqOptions

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1.	/_The disinfection efficiency of chlorine increases by (i) Decreasing the time of contact (ii) Decreasing the temperature of water (iii) Increasing the temperature of water?
A.	Only (i)
B.	Both (i) and (ii)
C.	Both (i) and (iii)
D.	Only (iii)
Answer» E.

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