JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Mock Test - Ionic Equilibrium

  • question_answer
    The following equilibrium is established when \[HCl{{O}^{{}}}_{4}\]is dissolved in weak acid \[HF\]. \[HF+HCl{{O}_{4}}\rightleftharpoons Cl{{O}_{4}}^{-}+{{H}_{2}}{{F}^{+}}\] Which of the following is correct set of conjugate acid

    A) HF and \[HCl{{O}_{4}}\]         

    B)  HF and \[Cl{{O}_{4}}^{-}\]

    C)  HF and \[{{H}_{2}}{{F}^{+}}\]

    D) \[HCl{{O}_{4}}\] and \[{{H}_{2}}{{F}^{+}}\]

    Correct Answer: C

    Solution :

    [c] Conjugate acid base pair differ by a proton (\[{{H}^{+}}\])             \[\underset{(acid)}{\mathop{{{H}_{2}}{{F}^{+}}}}\,\xrightarrow{-{{H}^{+}}}\underset{(base)}{\mathop{HF}}\,\]


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