JEE Main & Advanced Chemistry Equilibrium Question Bank Acids and Bases

  • question_answer The conjugate base of \[{{H}_{2}}PO_{4}^{-}\] is               [AIEEE 2004]

    A)                 \[{{H}_{3}}P{{O}_{4}}\] 

    B)                 \[{{P}_{2}}{{O}_{5}}\]

    C)                 \[PO_{4}^{3-}\]               

    D)                 \[HPO_{4}^{2-}\]

    Correct Answer: D

    Solution :

                    \[\underset{\text{Conjugate acid}}{\mathop{{{H}_{2}}PO_{4}^{-}}}\,\to {{H}^{+}}+\underset{\text{Conjugate base}}{\mathop{HPO_{4}^{2-}}}\,\]


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