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Q. |
Which of the following is the pure compound? |
A. | sodium fluoride |
B. | sodium silico fluoride |
C. | hydrofluosilicic acid |
D. | sodium fluro carbonate |
Answer» A. sodium fluoride | |
Explanation: sodium fluoride is the most purest compound having 95-98% purity due to which, they are commonly used for fluoridation. |
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