AMU Medical AMU Solved Paper-1996

  • question_answer
    Which of the following is the strongest acid?

    A)  \[HOCl\]           

    B)  \[HOCl{{O}_{2}}\]

    C)  \[HOCl{{O}_{3}}\]         

    D)  \[HOClO\]

    Correct Answer: C

    Solution :

    : The acid strength increases with the increasing oxidation state of halogens because of the strengthening of chlorine-oxygen bond and weakening of\[O-H\]bond. The increasing acid character of these oxo acids are \[\overset{+1}{\mathop{HClO}}\,<\overset{+3}{\mathop{HCl{{O}_{2}}}}\,<HCl{{O}_{3}}<\overset{+5}{\mathop{HClO4}}\,.\overset{+7}{\mathop{{}}}\,\]


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