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Name two intermolecular forces that exis...

Name two intermolecular forces that exist between HF molecules in liquid state.

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H-F is a polar covalent molecule in which dipole-dipole interactions exists. Since, it contains an electronegative atom, F bonded to H atom, therefore, H-bond exists between its molecules. Due to these H-bonds, `-HF` molecules exists in liquid state. Hence, in liquid state, H-bonds as well as well as dipole dipole interaction exists within HF molecules.
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Knowledge Check

  • The intermolecular force between the molecules increases

    A
    when the distance between the molecules increases
    B
    When the distance between the molecules decreases
    C
    when the distance remains constant
    D
    none of the above

  • When ethanol mixes in cyclohexane, cyclohexane reduces the intermolecular forces between ethanol molecule. In this, liquid pair shows

    A
    Positive deviation by Raoult's law
    B
    Negative deviation by Raoult's law
    C
    No deviation by Raoult's law
    D
    Decrease in volume

  • What type of intermolecular forces exist between NH_3 and C_6H_6 ?

    A
    Dispersion forces
    B
    Dipole - dipole forces
    C
    Dipole - induced dipole forces and dispersion forces
    D
    Dispersion and dipole - dipole forces

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