2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Equilibrium / साम्यावस्था

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

  • question_answer
    The \[pH\] of \[{{10}^{-5}}\]M aqueous solution of \[NaOH\]is [MP PET 1996]

    A)                 5             

    B)                 7

    C)                 9             

    D)                 11

    Correct Answer: C

    Solution :

               NaOH ⇌\[N{{a}^{+}}+O{{H}^{-}}\]                    \[[O{{H}^{-}}]={{10}^{-5}}\]M ;\[[{{H}^{+}}]\,\,[O{{H}^{-}}]={{10}^{-14}}\]                                 \[[{{H}^{+}}]=\frac{{{10}^{-14}}}{{{10}^{-5}}}\] ; \[[{{H}^{+}}]={{10}^{-9}}\]M ; \[pH=9\].


You need to login to perform this action.
You will be redirected in 3 sec spinner