AP Chemistry Question 432: Answer and Explanation

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Question: 432

10. Identify the Brønsted-Lowry conjugate acid-base pair in the following list.

  • A. H3O+ and OH-
  • B. H3PO4 and H2PO4-
  • C. HClO4 and ClO3-
  • D. SO32- and HSO2-

Correct Answer: B


(B) The two phosphate species differ by only one H+.