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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Hydrogenion concentration pH scale and buffer solution

  • question_answer
    The \[pH\]of a solution is 2. If its \[pH\] is to be raised to 4, then the \[[{{H}^{+}}]\] of the original solution has to be       [MP PET 1994]

    A)                 Doubled

    B)                 Halved

    C)                 Increased hundred times

    D)                 Decreased hundred times

    Correct Answer: D

    Solution :

               If pH of any solution is 2.                    Then \[[{{H}^{+}}]={{10}^{-2}}\]M                                 If pH of any solution is just double then \[pH=4\]and \[[{{H}^{+}}]\]will be \[{{10}^{-4}}\].


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