Which of the following is NOT a conjugate acid-base pair? A) NH₄⁺/NH₃ B) H₃O⁺/OH⁻ C) H₂SO₃/HSO₃⁻ D) C₂H₃O₂⁻/HC₂H₃O₂ E) All of the above are conjugate acid-base pairs.

Question

Quizplus · Accepted Answer

Conjugate acid-base pairs differ by a proton (H⁺). In choice B, $HSO_4^+$ and $OH^-$ do not form a conjugate acid-base pair because they do not differ by just a single proton; instead, they are unrelated species in terms of proton transfer.

Which of the Following Is NOT a Conjugate Acid-Base Pair