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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 \[0.001\,M\,NaOH\] will be                 [MP PMT 1995; UPSEAT 2001]

    A)                 3             

    B)                 2

    C)                 11          

    D)                 12

    Correct Answer: C

    Solution :

               0.001 M of \[NaOH\]means \[[O{{H}^{-}}]=.001\]                    \[={{10}^{-3}}M\Rightarrow pOH=3\]                                 \[pH+pOH=14\Rightarrow pH=14-3=11\]


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