🔬 MCAT Exam Prep

What is the conjugate base of H2PO4-?

A H3PO4
B HPO4 2-
C PO4 3-
D H2PO4-

✓ Correct Answer: Option B

A conjugate base is formed by removing one proton: H2PO4- → HPO4²- + H+.

💡 Why is B) the correct answer?

The correct answer to the question "What is the conjugate base of H2PO4-?" is Option B: HPO4 2-.

The other options — A) H3PO4, C) PO4 3-, D) H2PO4- — are incorrect for this MCAT Exam Prep question. As explained above: A conjugate base is formed by removing one proton: H2PO4- → HPO4²- + H+.

📚 About This MCAT Exam Prep Practice Question

This 2-level MCAT Exam Prep question from the Chemical & Physical Foundations 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 MCAT Exam Prep practice test or use flashcards for spaced repetition review.

Related MCAT Exam Prep Questions