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

  • question_answer
    If the \[pH\] of a solution is 4.0 at \[{{25}^{o}}C,\] its \[pOH\] would be \[({{K}_{w}}={{10}^{-14}})\]         [MP PMT 1989]

    A)                 4.0         

    B)                 6.0

    C)                 8.0         

    D)                 10.0

    Correct Answer: D

    Solution :

               \[pH+pOH=14,\,pH=4.0\]                                 \[pOH=14-pH\] ; \[pOH=14-4.0=10.0\]


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