Which material is used for removing fluorides from hard water containing 3ppm of fluorides?
A) Lime
B) Copper sulfate
C) Synthetic tri-calcium phosphate
D) Bone charcoal
Correct Answer:
Verified
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
Q10: Fluorex is a special mixture of _
A)Di-calcium
Q11: Which of these materials is not added
Q12: How much chromium is required to provide
Q13: Molybdenum with hydrogen can be used up
Q14: % chromium mixed with _ can be
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents