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Question
\[\ce{H2PO^-_4}\] the conjugate base of ____________.
Options
\[\ce{PO^{3-}_4}\]
P2O5
H3PO4
\[\ce{HPO^{2-}_4}\]
MCQ
Fill in the Blanks
Solution
\[\ce{H2PO^-_4}\] the conjugate base of H3PO4.
Explanation:
\[\ce{\underset{acid 1}{H3PO4} + \underset{base 1}{H - OH} ⇌ \underset{acid 2}{H3O^+} + \underset{base}{H2PO^-_4}}\]
∴ \[\ce{H2PO^-_4}\] is the conjugate base of H3PO4
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Strength of Acids and Bases
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