A buffer solution resists changes in pH when small amounts of:
✓ Correct Answer: Option B
Buffers contain a weak acid/conjugate base pair that neutralize added H⁺ or OH⁻ ions.
📚 About This AP Exam Prep Practice Question
This 2-level AP Exam Prep question from the AP Chemistry topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.
How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free AP Exam Prep practice test or use flashcards for spaced repetition review.