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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.

Related tags

ScienceClass10AntacidNeutralisationAcids-BasesAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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