Which statement describes a solution with pH 11?

Which statement describes a solution with pH 11?

• A. Basic
• B. Neutral
• C. Amphoteric
• D. Acidic

Answer: (A)

This question tests how pH indicates whether a solution is acidic, neutral, or basic. On the pH scale, values below 7 are acidic, 7 is neutral, and above 7 are basic. A pH of 11 is well above 7, meaning the solution has more OH− than H+. That makes it basic. For reference, pOH would be 14 − 11 = 3, so [OH−] is 10−3 M, reinforcing the basic character. It’s not neutral or acidic, and amphoteric describes a substance’s ability to act as both an acid and a base, not the pH value of the solution.

This question tests how pH indicates whether a solution is acidic, neutral, or basic. On the pH scale, values below 7 are acidic, 7 is neutral, and above 7 are basic. A pH of 11 is well above 7, meaning the solution has more OH− than H+. That makes it basic. For reference, pOH would be 14 − 11 = 3, so [OH−] is 10−3 M, reinforcing the basic character. It’s not neutral or acidic, and amphoteric describes a substance’s ability to act as both an acid and a base, not the pH value of the solution.