The process of reducing the fluoride content from water is called _____
A) Chlorination
B) Fluoridation
C) Defluoridation
D) Flocculation
Correct Answer:
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Q1: Which of the following is the pure
Q2: As far as safer handling is considered,
Q3: What happens when water contains 8-20 ppm
Q5: Which of the following is not used
Q6: At which temperature, the bone is calcinated
Q7: One cubic metre of bone can treat
Q8: Which material is used in contact filters
Q9: Which material is used for removing fluorides
Q10: Fluorex is a special mixture of _
A)Di-calcium
Q11: Which of these materials is not added
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