Which of the Following Would Have the Greatest Concentration of Hydrogen

Question

Which of the following would have the greatest concentration of hydrogen ions?
A)pH 2
B)pH 6
C)pH 8
D)pH 10

Accepted Answer

A pH of 2 indicates a high concentration of hydrogen ions, while a pH of 6, 8, or 10 all indicate lower concentrations of hydrogen ions. Therefore, choice A has the greatest concentration of hydrogen ions.