1.

    A 0.1 molal aqueous solution of a weak electrolyte, HX, freezes at -0.208 °C. Assuming ideal behavior, what is the van't Hoff factor (i) for HX in this solution? (Kf_f for water = 1.86 K kg mol−1^{-1})

    A

    1.00

    B

    1.12

    C

    1.50

    D

    2.00

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Colligative Properties, Freezing Point Depression, van't Hoff Factor

    Related Questions

    1.

    Molal elevation constant of a liquid is :

    A

    The elevent in b.p. which would be produced by dissolving one mole of solute in 100 g of solvent

    B

    The elevation of b.p. which would be produced by dissolving 1 mole solute in 10 g of solvent.

    C

    Elevation in b.p. which would be produced by dissolving 1 mole of solute in 1000 g of solvent

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Molal elevation constant, colligative properties, boiling point elevation

    2.

    The molal elevation/depression constant depends upon :

    A

    Nature of solvent

    B

    Nature of solute

    C

    Temperature

    D

    ΔH\Delta H solution

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :colligative properties, molal elevation constant, molal depression constant

    3.

    The elevation in boiling point for one molal solution of a solute in a solvent is called :

    A

    Cryoscopic constant

    B

    Boiling point constant

    C

    Molal ebullioscopic constant

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Colligative properties, Molal elevation constant, Ebullioscopic constant

    4.

    The molal elevation constant for water is 0.52  K  molality−1{\rm{0}}{\rm{.52}}\;{\rm{K}}\;{\rm{molalit}}{{\rm{y}}^{ - 1}}. The elevation caused in the boiling point of water by dissolving 0.25 mole of a non-volatile solute in 250 g of water will be :

    A

    52∘C52^\circ {\rm{C}}

    B

    5.2∘C5.2^\circ {\rm{C}}

    C

    0.52∘C0.52^\circ {\rm{C}}

    D

    0.052∘C0.052^\circ {\rm{C}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Molal elevation constant, boiling point elevation, molality

    5.

    Molal elevation constant of a liquid is :

    A

    The elevent in b.p. which would be produced by dissolving one mole of solute in 100 g of solvent

    B

    The elevation of b.p. which would be produced by dissolving 1 mole solute in 10 g of solvent.

    C

    Elevation in b.p. which would be produced by dissolving 1 mole of solute in 1000 g of solvent

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Molal elevation constant, boiling point elevation, colligative properties

    6.

    The molal elevation/depression constant depends upon :

    A

    Nature of solvent

    B

    Nature of solute

    C

    Temperature

    D

    ΔH\Delta H solution

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Solutions
    🎯Topic:Colligative Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :colligative properties, molal elevation constant, molal depression constant

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