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Why does hydrochloric acid show a stronger acidic effect than ethanoic acid at the same concentration?

Answer and explanation

Correct answer: Because it ionises more completely

The acidic effect of an aqueous acid depends mainly on the concentration of hydrogen ions, represented as H₃O⁺ in water. Hydrochloric acid is a strong acid and ionises almost completely, whereas ethanoic acid is weak and ionises only partially at the same concentration. Thus hydrochloric acid produces more hydrogen ions and has the stronger effect, making option A correct. The other statements are chemically false.

Related tags

Strong AcidsWeak AcidsHydrogen IonsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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