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

  • question_answer
    In a solution of acetic acid, sodium acetate is added, then its pH value    [NCERT 1977; DPMT 1985; MP PMT 1994]

    A)                 Decreases          

    B)                 Increases

    C)                 Remains unchanged      

    D)                 A and B both are correct

    Correct Answer: B

    Solution :

                    Solution of \[C{{H}_{3}}COONa\]on addition to acid shows a decrease in dissociation of acid due to common ion effect. To decrease in \[[{{H}^{+}}]\]or increase pH.


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