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Acids, Bases and Salts — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
Question
Explain why the pH in a person’s mouth becomes lower after each meal.
✓

Answer

After each meal, sugar present in the food is broken down into acids by the bacteria present in the mouth. Acids have a pH less than 7, and as the acidity increases, the pH decreases. Thus, the pH in a person’s mouth becomes lower after each meal.

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