A water solution whose pH is 4_______. a. is always neutral b. is always acidic c. is always basic d. might be neutral, basic or acidic.
A water solution whose pH is 4 is always acidic. Acidic pH is always less than 7, that of greater than 7 is basic. The solution with pH of 7 is called a neutral solution. pH is a measure of H+ concentration hence the acidic solutions have more H+ concentration