The condition that damages tooth enamel is related to which of the following?
Answer and explanation
Correct answer: pH in the mouth falling below 5.5
Tooth enamel is mainly mineral in nature and begins to dissolve when acids lower the pH in the mouth below about 5.5. Bacteria can act on food residues and produce acids, creating this condition. A pH of 7 is neutral and is not the critical acidic condition stated here. Water alone and the absence of bacteria do not explain enamel damage. Thus, option A is correct.
Frequently asked questions
What is the correct answer to this question?
pH in the mouth falling below 5.5
Why is this the correct answer?
Tooth enamel is mainly mineral in nature and begins to dissolve when acids lower the pH in the mouth below about 5.5. Bacteria can act on food residues and produce acids, creating this condition. A pH of 7 is neutral and is not the critical acidic condition stated here. Water alone and the absence of bacteria do not explain enamel damage. Thus, option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
