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Why is an antacid given when excess acid is produced in the stomach?

Answer and explanation

Correct answer: It neutralises excess acid

The governing concept is acid–base neutralisation. Excess hydrochloric acid in the stomach can cause acidity and irritation. Antacids contain mild bases, such as magnesium hydroxide or suitable carbonate compounds, which react with excess acid and reduce its acidity. Therefore option A is correct. An antacid is not intended to increase acid, convert food into acid, or fill the stomach with hydrogen gas; those statements do not describe its function.

Related tags

AntacidStomach-AcidityNeutralisationAcids-BasesAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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