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AMU Medical AMU Solved Paper-2000

  • question_answer
    Which of the following will occur if a 0.1 M solution of a weak acid is diluted to 0.01 M at constant temperature?

    A)  \[{{K}_{a}}\] will increase

    B)  pH will decrease

    C)  Percent ionisation increase

    D)  \[[{{H}^{+}}]\] will decrease to 0.01 M

    Correct Answer: C

    Solution :

                     We know that the degree of ionisation of weak electrolyte increases on dilution. So, if a 0.1 M solution of a weak acid is diluted to 0.01 M then the percent ionisation increases.


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