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A salt solution turns red litmus blue. It is more likely formed from which combination?

Answer and explanation

Correct answer: Weak acid and strong base

Red litmus turning blue shows that the salt solution is basic. A salt formed from a weak acid and a strong base usually gives a basic solution because the anion of the weak acid reacts with water and generates hydroxide ions. Thus option A is correct. A strong-acid/weak-base salt is generally acidic, while a strong-acid/strong-base salt is approximately neutral; water and a metal do not describe a normal salt-forming combination here.

Related tags

Basic SaltLitmusSalt HydrolysisAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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