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Due to which ion does hydrochloric acid show acidity in water?

Answer and explanation

Correct answer: Hydrogen ion

Hydrochloric acid ionises almost completely in water: HCl(aq) → H+(aq) + Cl−(aq), with H+ more accurately represented in water as H3O+. The hydronium or hydrogen-ion concentration gives the solution its acidic properties and allows it to react with bases. Hydroxide ions indicate basicity, whereas sodium and carbonate ions are not produced by hydrochloric acid. Hence option A is correct.

Related tags

Hydrochloric AcidHydrogen IonAcidityAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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