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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    If the pH value of\[HCl\]solution is 4 then its molar concentration will

    A)  4 M             

    B)  0.0001 M

    C)  0.4 M            

    D)  10 M

    Correct Answer: B

    Solution :

     If \[pH=4\] \[[{{H}^{+}}]={{10}^{-pH}}\] \[[{{H}^{+}}]={{10}^{-4}}=0.0001\,M\]


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