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Chemistry Test ...

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  • Question 1
    4 / -1

    The solubility of CaF2 in pure water is 2.3 × 10-4 mol dm-3. Its solubility product will be

  • Question 2
    4 / -1

    The solubility of Mg(OH)2 is S moles/litre. The solubility product under the same conditions is

  • Question 3
    4 / -1

    In the reaction 2H2O (g) + 2Cl2 (g) ⇄ 4HCl (g) + O2 (g), the values of Kp and Kc are related as

  • Question 4
    4 / -1

    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

  • Question 5
    4 / -1

    Which of the following compounds is not a protonic acid?

  • Question 6
    4 / -1

    For a sparingly soluble salt ApBq, the relationship between its solubility product (Ls) and its solubility (S) is

  • Question 7
    4 / -1

    What is the maximum concentration of equimolar solution of ferrous sulphate and sodium sulphide, so that when mixed in equal volumes there is no precipitation of iron sulphide? [Ksp for iron sulphide = 6.3 × 10-18]

  • Question 8
    4 / -1

    The solubility product of silver bromide is 5 x 10-13. The quantity of potassium bromide with molar mass 120 g/mol to be added to 1 litre of 0.05 M solution of silver nitrate to start the precipitation of AgBr is

  • Question 9
    4 / -1

    For the equilibrium A ⇋ B, the variation of the rate of the forward (a) and reverse (b) reaction with time is given by

  • Question 10
    4 / -1

    The number of H+ ions in 1 cm3 of a solution having pH = 13 is ___________.

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