Which of these is a correct statement about pH?
A) The pH of a solution increases as its acidity increases.
B) The pH of a basic or alkaline solution is less than that of an acidic solution.
C) As the concentration of H+ increases in a solution, the pH decreases.
D) A solution to which HCl has been added will have a greater pH than a solution to which NaOH has been added.
E) Each number on the pH scale represents an increase of 108.
Answer: C) As the concentration of H+ increases in a solution, the pH decreases.
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