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  • Question 1
    4 / -1

    Why is the molecular mass determined by measuring colligative property in case of some solutes is abnormal?

  • Question 2
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    Which of the following representations of i (van't Hoff factor) is not correct?

  • Question 3
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    Which of the following relations is not correctly matched with the formula?

  • Question 4
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    Which of the following will have same value of vant's Hoff factor as that of K4[Fe(CN)6]?

  • Question 5
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    Arrange the following aqueous solutions in the order of their increasing boiling points
    (i) 10−4M NaCl
    (ii) 10−4M Urea
    (iii) 10−3M MgCl2
    (iv) 10−2M NaCl

  • Question 6
    4 / -1

    Which of the following has the highest freezing point?

  • Question 7
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    If α is the degree of dissociation of Na2SO4, the vant Hoff's factor (i) used for calculating the molecular mass is:

  • Question 8
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    For which of the following solutes the van’t Hoff factor is not greater than one?

  • Question 9
    4 / -1

    What will be the degree of dissociation of 0.1M Mg(NO3)2 ​solution if van't Hoff factor is 2.74?

  • Question 10
    4 / -1

    Which of the following will have the highest f.pt. at one atmosphere?

  • Question 11
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    A solute X when dissolved in a solvent associates to form a pentamer. The value of van't Hoff factor (i) for the solute will be

  • Question 12
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    What will be the freezing point of a 0.5m KCl solution? The molal freezing point constant of water is 1.86∘C m−1.

  • Question 13
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    What amount of CaCl2 (i = 2.47) is dissolved in 2 litres of water so that its osmotic pressure is 0.5atm at 27oC?

  • Question 14
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    The van't Hoff factor of a 0.005 M aqueous solution of KCl is 1.95. The degree of ionisation of KCl is

  • Question 15
    4 / -1

    The elevation in boiling point of a solution of 9.43g of MgCl2 in 1kg1kg of water is (Kb = 0.52 K kg mol−1, Molar mass of MgCl2 = 94.3 g mol−1)

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