Which Pair of Substances Does Not Represent a Conjugate Acid-Base

question 21

Multiple Choice

Which pair of substances does not represent a conjugate acid-base pair?

• A) CH₃COOH and CH₃COO^-
• B) CH₃NH₃⁺ and CH₃NH₂
• C) H₂SO₃ and HSO₄^-
• D) HPO₄^2- and PO₄^3-
• E) HCOOH and HCOO^-

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