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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Acids and Bases

  • question_answer
    Dissociation of \[{{H}_{3}}P{{O}_{4}}\]takes place in following steps [CPMT 1976; NCERT 1987]

    A)                 1             

    B)                 2

    C)                 3             

    D)                 4

    Correct Answer: C

    Solution :

               \[{{H}_{3}}P{{O}_{4}}\]             \[{{H}^{+}}+{{H}_{2}}PO_{4}^{-}\]                    \[{{H}_{2}}PO_{4}^{-}\]              \[{{H}^{+}}+HPO_{4}^{-\,-}\]                                 \[HPO_{4}^{-\,-}\]              \[{{H}^{+}}+PO_{4}^{-\,-\,-}\]


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