Question

In drinking water, the presence of soluble Fluoride ions up to 1 ppm is

• A. Harmful to skin
• B. Harmful to bones
• C. Safe for teeth
• D. Harmful for teeth

Answer 1

The correct option is C

Safe for teeth

The Explanation for the correct answer:

C.Safe for teeth

• Fluoride contamination causes an overabundance of fluoride in the water, which is harmful to a person's health.
• An essential mineral called fluoride is needed for the development of the thyroid gland, skin, teeth, and dental enamel.
• Fluoride poisoning negatively impacts the bones, and joints, and produces fluorosis in teeth.

The optimum concentration of ${\mathrm{F}}^{-}$ ion:

• The ${\mathrm{F}}^{-}$ ion concentration less than or equal to $1\mathrm{ppm}$ is safe for the teeth.

Final answer: The correct answer is option c, Safe for teeth.