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- The presence of soluble fluoride ion up to 1ppm concentration in drinking water is Option: 1 Harmful to skinOption: 2 Harmful to boneOption: 3 Harmful to teeth Option
The presence of soluble fluoride ion up to 1ppm concentration in drinking water is
Option: 1 Harmful to skin
Option: 2 Harmful to bone
Option: 3 Harmful to teeth
Option: 4 Safe for teeth
Answers (1)
Fluoride ion concentration upto 1 ppm is safe for teeth.
Therefore, Option(4) is correct.
View full answer
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