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A student says that an antacid relieves indigestion by increasing the amount of acid in the stomach. What is the correct correction to this statement?

Answer and explanation

Correct answer: This statement is incorrect; an antacid neutralises excess hydrochloric acid.

Antacids are mild bases that react with and neutralise excess hydrochloric acid in the stomach. For example, magnesium hydroxide follows Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O. This reduces excessive acidity and supports relief from indigestion, so option B is correct. Antacids do not produce HCl, increase its concentration, or convert acid into a metal.

Related tags

AntacidsNeutralisationHydrochloric AcidAcids Bases SaltsChemical ReactionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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