Why does a mild basic substance give relief in indigestion caused by excess stomach acid?
Answer and explanation
Correct answer: It neutralises excess acid
The governing concept is neutralisation. Excess hydrochloric acid in the stomach can irritate the digestive system and contribute to indigestion. A mild base, such as the active ingredient in a suitable antacid, reacts with some of the excess acid and reduces its acidity, often producing salt and water. It does not create more acid, form metal, or convert water into gas. Therefore, the neutralisation explanation in option A is correct.
Frequently asked questions
What is the correct answer to this question?
It neutralises excess acid
Why is this the correct answer?
The governing concept is neutralisation. Excess hydrochloric acid in the stomach can irritate the digestive system and contribute to indigestion. A mild base, such as the active ingredient in a suitable antacid, reacts with some of the excess acid and reduces its acidity, often producing salt and water. It does not create more acid, form metal, or convert water into gas. Therefore, the neutralisation explanation in 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.
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