Question

Match the following:
 

• A. \( A - III, B - II, C - I \)
• B. \( A - III, B - I, C - II \)
• C. \( A - II, B - I, C - III \)
• D. \( A - II, B - III, C - I \)

Hint:

Fluoride is beneficial in small amounts but harmful in excess. Below 1 ppm causes tooth decay, 2-10 ppm causes dental fluorosis, and above 10 ppm leads to skeletal fluorosis.

Answer 1

The Correct Option is D

The correct matching is:

• A - II: A fluoride concentration of less than 1 ppm in drinking water helps prevent tooth decay.
• B - III: A fluoride concentration greater than 2 ppm can cause brown mottling of teeth (fluorosis).
• C - I: A fluoride concentration greater than 10 ppm can be harmful to bones, causing skeletal fluorosis.

Therefore, the correct answer is A - II, B - III, C - I.