The H₂PO₄^- Ion Is Amphoteric

question 91

Multiple Choice

The H₂PO₄^- ion is amphoteric. What are the conjugate acid and conjugate base, in that order, of H₂PO₄^-?

• A)PO₄^3-, H₂PO₄^-
• B)H₂PO₄^-, PO₄^3-
• C)H₂PO₄^-, H₃PO₄
• D)H₃PO₄, HPO₄^2-
• E)H₃O⁺, PO₄^3-

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