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  3. The bactericidal, virucidal and cysticid...
Q.

The bactericidal, virucidal and cysticidal efficiency of chlorine as a disinfectant

A. increases with a decrease in pH
B. increases with a increase in pH
C. decreases with a decrease in pH
D. decreases with an increase in pH
E. None of the above
Answer» A. increases with a decrease in pH
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