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How does an antacid give relief during excess acidity in the human stomach?

Answer and explanation

Correct answer: By neutralising excess acid

The stomach normally contains hydrochloric acid, which supports digestion, but an excess can irritate the stomach lining and cause discomfort. An antacid contains a mild base, such as a hydroxide, carbonate, or bicarbonate, which reacts with excess hydrochloric acid in a neutralisation reaction. The acidity is reduced rather than strengthened. It does not form chlorine or convert water into acid. Therefore option A correctly explains the relief.

Related tags

AntacidStomach AcidNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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