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

  • question_answer
    The \[pH\] of solution having \[[O{{H}^{-}}]={{10}^{-7}}\] is         [AIIMS 1996]

    A)                 7             

    B)                 14

    C)                 Zero      

    D)                 \[-7\]

    Correct Answer: A

    Solution :

               \[pH+pOH=14\]; \[pH=14-pOH\]                    \[\because \,[O{{H}^{-}}]={{10}^{-7}}\]                    \[pOH=7\]                                 \[\therefore \,pH=14-7=7\].


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