VMMC VMMC Medical Solved Paper-2009

  • question_answer
    The pH of a solution is 4. Its \[[{{H}^{+}}]\] is

    A) 4 M                                       

    B) \[{{10}^{4}}\,M\]            

    C)        \[{{10}^{-4}}\,M\]           

    D)         \[{{10}^{-1}}\,M\]

    Correct Answer: C

    Solution :

    \[pH=-\log [{{H}^{+}}]\] or            \[[{{H}^{+}}]=1\times {{10}^{-pH}}\] For a solution of pH 4. \[[{{H}^{+}}]=1\times {{10}^{-4}}\,M\]


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