Yes, a solution with a pH of 5.2 is more acidic than a solution with a pH of 7.4.

Here's why:

* The pH scale: The pH scale measures the acidity or alkalinity of a solution. It ranges from 0 to 14.

* Lower pH = More acidic: A lower pH value indicates a higher concentration of hydrogen ions (H+), which are what make a solution acidic.

* Higher pH = More alkaline (basic): A higher pH value indicates a lower concentration of hydrogen ions, making the solution more alkaline (basic).

Since 5.2 is lower than 7.4, the solution with a pH of 5.2 is more acidic.