Question

Which of the following accurately describes the pH scale?

A. The lower the pH is, the more basic the solution is.
B. The lower the concentration of hydrogen ions, the higher the acidity is.
C. The greater the concentration of hydroxide ions, the higher the acidity is.
D. The greater the pH is, the lower the acidity is.

Answer 1

Well if you haven't found the answer yet it's D, as the pH scale goes from 0-14 where 14 is the most alkaline and 0 is the most acidic. Therefore as you go up the scale, the substance becomes less acidic.