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Chemistry Test 69
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Chemistry Test 69
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  • Question 1/7
    4 / -1

    A molecule M associates in a given solvent according to the equation M ⇌ (M)n. For a certain concentration of M, the van’t Hoff factor was found to be 0.9 and the fraction of associated molecules was 0.2. The value of n is:

  • Question 2/7
    4 / -1

    The solubility order for alkali metal fluoride in water is:

  • Question 3/7
    4 / -1

    XeO4 molecule is tetrahedral having:

  • Question 4/7
    4 / -1

    The reaction X → Y is an exothermic reaction. Activation energy of the reaction for X into Y is 150 kJ mol–1. Enthalpy of reaction is 135 kJ mol–1. The activation energy for reverse reaction, Y → X will be:

  • Question 5/7
    4 / -1

    For which of the following compounds Kjeldahl method can be used to determine the percentage of Nitrogen?

  • Question 6/7
    4 / -1

    Which of the following statements about aspirin is not true?

  • Question 7/7
    4 / -1

    The density of 3M solution of sodium chloride is 1.252 g mL–1. The molality of the solution will be:

    (molar mass, NaCl = 58.5 g mol–1)

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