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

  • question_answer
    \[pH\]values of \[HCl\] and \[NaOH\] solutions each of strength \[\frac{N}{100}\] will be respectively    [MP PMT 1999]

    A)                 2 and 2 

    B)                 2 and 12

    C)                 12 and 2              

    D)                 2 and 10

    Correct Answer: B

    Solution :

               \[\frac{N}{100}=0.01\,N\,HCl\];\[[{{H}^{+}}]={{10}^{-2}}\]M ; \[pH=2\]                    \[[OH]={{10}^{-2}}\]M for NaOH                                 \[pH+pOH=14\]; \[pH=14-2\];\[pH=12\]


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