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

  • question_answer
    On adding solid potassium cyanide to water [MP PMT 1989]

    A)                 pH will increase

    B)                 pH will decrease

    C)                 pH will not change          

    D)                 Electrical conductance will not change

    Correct Answer: A

    Solution :

               \[C{{N}^{-}}+{{H}_{2}}O\to HCN+O{{H}^{-}}\]                 Because \[O{{H}^{-}}\]concentration is increased.


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