Q
The disinfection efficiency of chlorine increases by_______________?
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A
A. 1) decreasing the time of contact
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B
B. 2) decreasing the temperature of water
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C
C. 3) increasing the temperature of water
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D
D. The correct answer is ?
Correct Answer:
1) Decreasing the time of contact
2) decreasing the temperature of water
3) increasing the temperature of water