How does an antacid provide relief during excess acidity in the stomach?
Answer and explanation
Correct answer: By neutralising excess acid
Excess hydrochloric acid in the stomach can produce a burning sensation and discomfort. An antacid contains a mild base, such as a suitable hydroxide, carbonate, or related basic compound. It reacts with some excess acid and neutralises it, reducing acidity without adding more acid. Therefore option A correctly states the main chemical action. The other choices describe gas control, water removal, or acid increase, none of which explains antacid neutralisation.
Frequently asked questions
What is the correct answer to this question?
By neutralising excess acid
Why is this the correct answer?
Excess hydrochloric acid in the stomach can produce a burning sensation and discomfort. An antacid contains a mild base, such as a suitable hydroxide, carbonate, or related basic compound. It reacts with some excess acid and neutralises it, reducing acidity without adding more acid. Therefore option A correctly states the main chemical action. The other choices describe gas control, water removal, or acid increase, none of which explains antacid neutralisation.
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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