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Four solutions have pH values 2, 6, 7 and 12. Which one is the most basic?

Answer and explanation

Correct answer: Solution with pH 12

The pH scale expresses hydrogen-ion concentration: lower pH means greater acidity, pH 7 is approximately neutral at ordinary conditions, and values above 7 indicate basic character. Comparing 2, 6, 7 and 12, the highest value is 12, so it represents the most basic solution and option C is correct. pH 2 and 6 are acidic, while pH 7 is neutral rather than basic.

Related tags

Ph-ScaleBasicitySolution-ComparisonAcids-And-BasesAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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