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Ionic Equlibrium Test - 6

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  • Question 1
    1 / -0

    A 10-5 M solution of NaOH at 25°C is diluted 100 times. The pH of the solution will

    Solution

    Solution will become 10-7 M in NaOH. Since, the solution remains alkaline, its pH will be more than 7.

     

  • Question 2
    1 / -0

    The pH of a solution is 3. If its pH is to be raised to 6, then the [H+] of the original solution has to be

    Solution

    For pH = 3, [H+] = 10–3 M. For pH = 6, [H+] = 10–6 M. Hence, [H+] has to be decreased 1000 times.

     

  • Question 3
    1 / -0

    Which of the following compounds is not a protonic acid?

    Solution

    Since B(OH)3 is not able to donate any proton, so it is not a protonic acid.

     

  • Question 4
    1 / -0

    If the concentration of [Ag+] = 10-5 in a solution, then the concentration of [Cl-] required for the precipitation of AgCl (Ksp = 2 × 10-12) is

    Solution

    Use the expression: Ksp = [Ag+][Cl-]

     

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