A solution with a pH of 4 is acidic than a solution with a pH of 5.The solution with the pH of 4 has a concentration of hydrogen ions than the solution with a pH of 5.

Question

A solution with a pH of 4 is ________ acidic than a solution with a pH of 5.The solution with the pH of 4 has a ________ concentration of hydrogen ions than the solution with a pH of 5.