Which One of the Following Is Not a Conjugate Acid-Base

question 36

Multiple Choice

Which one of the following is not a conjugate acid-base pair?

• A) NH₃ and NH₄⁺
• B) H₃O⁺ and OH^-
• C) H₂PO₄^- and HPO₄^2-
• D) HS^- and H₂S
• E) NH₃ and NH₂^-

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