Which of the following is the pure compound?
A) Sodium fluoride
B) Sodium silico fluoride
C) Hydrofluosilicic acid
D) Sodium fluro carbonate
Correct Answer:
Verified
Q2: As far as safer handling is considered,
Q3: What happens when water contains 8-20 ppm
Q4: The process of reducing the fluoride content
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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