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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Common ion effect, Isohydric solutions, Solubility product, Ionic product of water and salt hydrolysis

  • question_answer
    What is the \[pH\] value of \[\frac{N}{1000}\,KOH\] solution [CPMT 1975; MNR 1986, 91; Pb. CET 2004]

    A)                 \[{{10}^{-11}}\]

    B)                 3

    C)                 2             

    D)                 11

    Correct Answer: D

    Solution :

               \[{{10}^{-3}}N\] KOH will give \[[O{{H}^{-}}]={{10}^{-2}}\]M                    \[pOH=2\]                                 \[\because \,pH+pOH=14\], \[pH=14-2=12\]


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