Which statement correctly describes a weak acid’s pH range?

• A. 0 to 2
• B. 3 to 6
• C. 8 to 11
• D. 12 to 14

Answer: (B)

pH shows how acidic a solution is, which depends on how much the acid dissociates in water. A weak acid only partly dissociates, so it releases fewer hydrogen ions than a strong acid of the same concentration. That makes the solution less acidic and raises the pH into a mildly acidic range. On the pH scale, neutral is 7, strong acids sit around 0–2, and bases sit around 8–14. Weak acids typically fall in the 3–6 range, though the exact value depends on concentration. So the statement describing a weak acid’s pH as 3–6 is the best fit.