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Bases give which type of ions when dissolved in water?

Answer and explanation

Correct answer: Hydroxide ions

According to the Arrhenius concept, a base produces hydroxide ions, OH⁻, when dissolved in water. These ions are responsible for the alkaline nature of the solution and can cause indicators such as red litmus to turn blue. Hydrogen ions are associated with acids, whereas chloride and nitrate ions may occur in salts but do not define a base. Therefore, option A is correct.

Related tags

ScienceClass10Acids-Bases-SaltsBasesHydroxide-IonsAcidsAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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