When the pH of a solution changes from 2 to 6: a) That solution becomes more acidic due to an increase in the proton concentration. b) That solution contains 4X fewer protons. c) That solution becomes 1000X more basic. d) That solution is 4X more acidic. e) None of the above Solution Answer : Answer: The correct answer is B (That solution contains 4X fewer protons). When the pH of a solution changes from 2 to 6, the [H+] hydronium ions decrease and [OH-] will increase.