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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 which possess dipole - dipole interactions. However, it contains an electronegative atom, F bonded to H atom. Therefore, H - bond is present between its molecules. Due to these H - bonds, - HF molecules are in liquid state. Hence, in liquid state, H - bonds as well as dipole dipole interactions are present within HF molecules.
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Knowledge Check

  • Assertion (A) : Three states of matter are the result of balance between intermolecular forces and thermal energy of the molecules. Reason (R ) : Intermolecular forces tend to keep the molecules together but thermal energy of molecules tends to keep them apart.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is not the correct explanation of A
    C
    A is true but R is false.
    D
    A is false but R is true.

  • What is the dominant intermolecular force or bond that must be overcome in converting liquid CH_(3)OH to a gas ?

    A
    Dipole-dipole interaction
    B
    Covalent bonds
    C
    London dispersion force
    D
    Hydrogen bonding

  • Increase in kinetic energy can overcome intermolecular forces of attraction. How will the viscosity of liquid be affected by the increase in temperature ?

    A
    Increase
    B
    No effect
    C
    Decrease
    D
    No regular pattern will be followed

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    Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles, what will happen to the viscosity of a liquid if its temperature is increased ?

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    Which type of force of atraction exist in HF ?

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