Disinfection of drinking water, is done to remove
A. odour
B. bacterias
C. turbidity
D. colour
Answer: Option B
A. odour
B. bacterias
C. turbidity
D. colour
Answer: Option B
The fire demand of a city may be worked out by
A. Kuichling’s formula
B. Freeman formula
C. Bustan’s formula
D. All the above
Mathamoglobinemia or blue baby disease is caused due to
A. Chlorides
B. Nitrites
C. Nitrates
D. Sulphides
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