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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.

Related tags

AntacidNeutralisationStomach AcidAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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