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

question 69

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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