Look at the following relationship between concentration of free residual chlorine and contact time required for 99% kill (Watson's Law: C0.86 tp = λ (constant) for different pathogens).Pathogen typeAdenovirusE.coliCoxsackievirus A2AAλ (Constant) 0.0980.246.30.110Which pathogen has maximum resistance for chlorination?

Look at the following relationship between concentration of free resid

1.	Look at the following relationship between concentration of free residual chlorine and contact time required for 99% kill (Watson's Law: C0.86 tp = λ (constant) for different pathogens).Pathogen typeAdenovirusE.coliCoxsackievirus A2AAλ (Constant) 0.0980.246.30.110Which pathogen has maximum resistance for chlorination?
A.	E.coli
B.	Adenovirus
C.	Coxsackievirus A2
D.	AA
Answer» D. AA

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