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Among two acids of equal concentration, the first is a better conductor of electricity. Based on this, what can the first acid be like?

Answer and explanation

Correct answer: More-ionised strong acid

The governing concept is that electrical conductivity of an aqueous acid depends mainly on the concentration of mobile ions. At equal analytical concentration, an acid that ionises to a greater extent produces more H⁺ and corresponding negative ions, so it carries current better. Therefore, the first acid is most likely a more highly ionised strong acid. A weak acid gives fewer ions, while a neutral salt or insoluble solid does not fit the stated acid behaviour.

Related tags

Acid StrengthConductivityIonisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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