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Four solutions have pH values 1, 4, 8 and 13. Which one is the most acidic?

Answer and explanation

Correct answer: Solution with pH 1

Acidity increases as pH decreases because a lower pH corresponds to a greater concentration of hydrogen ions. Among the values 1, 4, 8 and 13, pH 1 is the lowest, so it indicates the most acidic solution and option D is correct. pH 4 is also acidic but weaker than pH 1, pH 8 is basic, and pH 13 is strongly basic.

Related tags

Ph-ScaleAcidic-SolutionHydrogen-IonsComparisonAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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