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RAJASTHAN PMT Rajasthan - PMT Solved Paper-1999

  • question_answer
    If the pH of \[HCl\]solution is 2 then the molar concentration of this will be:

    A)  \[0.01M\]                          

    B)                         \[2M\]

    C)                         \[0.4M\]                            

    D)                         \[0.02M\]

    Correct Answer: A

    Solution :

    \[pH=-\log [{{H}^{+}}]\] \[2=-\log [{{H}^{+}}]\] \[[{{H}^{+}}]={{10}^{-2}}\] \[=0.01M\]


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