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

  • question_answer
    When solid potassium cyanide is added in water then  [CPMT 2002; BHU 2002]

    A)                 pH will increase

    B)                 pH will decrease

    C)                 pH will remain the same

    D)                 Electrical conductivity will not change

    Correct Answer: A

    Solution :

                    \[KCN+{{H}_{2}}O\]⇌\[KOH+HCN\].\[KOH\]is a strong base and \[HCN\] is a weak acid.


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