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Punjab Medical Punjab - MET Solved Paper-2010

  • question_answer
    The following acids have been arranged in the order of decreasing acid strength. Identify the correct order      \[ClOH(I)\,\,\,BrOH(II)\,\,\,IOH(III)\]

    A) \[I>II>III\]                          

    B) \[II>I>III\]

    C) \[III>II>I\]                          

    D) \[I>III>II\]

    Correct Answer: A

    Solution :

    In\[ClOH\],\[BrOH\]and\[IOH\]the oxidation state of halogens is\[+1\], hence the order of acidic strength depends only upon the electronegativity of the halogen atom. Acidic strength\[\propto \]electronegativity of the halogen atom Hence, the correct order of decreasing acidic strength is                 \[ClOH>BrOH>IOH\]


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