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Which ion do acids give when dissolved in water?

Answer and explanation

Correct answer: Hydrogen ion

According to the Arrhenius concept, an acid increases the concentration of hydrogen ions in an aqueous solution. For example, hydrochloric acid ionises in water to form hydrogen ions and chloride ions: HCl → H⁺ + Cl⁻. Therefore, option A is correct. Hydroxide ions are characteristic of bases, while sodium and carbonate ions are present only in particular salts, not in every acid.

Related tags

AcidsHydrogen IonAqueous SolutionBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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