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Question
The pH values of three acids A, B and C having equal molar concentrations are 5.0, 2.8 and 3.5 respectively. Arrange these acids in order of the increasing acid strengths.
Solution
Acids have a pH value of less than 7. Lower the pH value, the stronger the acid. Hence, the acids in the increasing order of their strengths are as follows: A < C < B.
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