AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(c) Antacid
Antacids are used to treat indigestion caused by excess acid in the stomach, as they neutralise the excess acid.
Source: Exercises, Chapter 2, Q.4
Antacids are mild bases (e.g., milk of magnesia, baking soda) that neutralise excess stomach acid via a neutralisation reaction. Antibiotics fight bacteria, analgesics relieve pain, and antiseptics prevent infection — none of these treat acidity.