Which pH value represents the most basic solution?

• A. 2
• B. 14
• C. 12
• D. 4

Answer: (B)

The key idea is that pH tells how acidic or basic a solution is, based on hydrogen ion concentration. Higher pH means fewer hydrogen ions and a more basic (alkaline) solution. On the standard scale used for aqueous solutions, values rise toward the basic end as pH increases. So the most basic option is the one with the highest pH value. The other options have lower pH values, placing them on the acidic side or less basic than the strongest base. Therefore, the choice with the greatest pH is the correct one.