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Question
Which is more acidic : a solution of pH = 2 or a solution of pH = 6?
Solution
A solution with a pH of 2 is more acidic than a solution with a pH of 6, because an acidic solution has a pH value of less than 7. As the pH value decreases from 7, the acidity of a solution increases because there is an increase in the concentration of hydrogen ions (H+ ions).
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