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

  • question_answer
    Assuming complete dissociation, the \[pH\] of a 0.01 M \[NaOH\]solution is equal to [NCERT 1975; CPMT 1977; DPMT 1982; BHU 1997]

    A)                 2.0         

    B)                 14.0

    C)                 12.0       

    D)                 0.01

    Correct Answer: C

    Solution :

               \[{{10}^{-2}}\,M\,NaOH\]will give \[[O{{H}^{-}}]={{10}^{-2}}\]                    \[\therefore \,pOH=2\], Also \[pH+pOH=14\]                                 \[\therefore \,pH=12\].               


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