Understanding Intermolecular Forces in Chemistry
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Questions and Answers

What type of intermolecular force is the strongest among the three discussed?

  • Van der Waals forces
  • Dipole-dipole forces
  • Ion-dipole interaction
  • Hydrogen bonds (correct)

    • Which pair of molecules would likely engage in an ion-dipole interaction?

  • Oxygen and nitrogen
  • Carbon dioxide and methane
  • Sodium ion and water molecule (correct)
  • Hydrogen and helium

    • In which scenario would dipole-dipole forces have the most discernible effects?

  • When the polar atoms are packed closely together (correct)
  • When the polar atoms are far apart
  • When ion-dipole interactions occur
  • When hydrogen bonds are present

    • Which factor increases as a result of stronger intermolecular forces?

    <p>Boiling point</p> Signup and view all the answers

    What happens to the viscosity of a substance with weak intermolecular forces?

    <p>It decreases</p> Signup and view all the answers

    Which type of force is responsible for holding a molecule together?

    <p>Intramolecular forces</p> Signup and view all the answers

    What is the main characteristic of dipole-dipole interactions?

    <p>'Dipole-dipole interactions are weaker than hydrogen bonds.'</p> Signup and view all the answers

    'Ion-dipole interactions tend to occur whenever:'

    <p>'Polar solvents dissolve ionic compounds.'</p> Signup and view all the answers

    What do Intermolecular Forces refer to?

    <p>The attraction between molecules, ions, and atoms when they are in close proximity</p> Signup and view all the answers

    Which statement about molecules is true?

    <p>Molecules are the smallest functional units of chemical compounds</p> Signup and view all the answers

    Which type of intermolecular force is a hydrogen bond?

    <p>Dipole-dipole force</p> Signup and view all the answers

    Why would a hydrogen bond not be exemplified by the interaction between hydrogen and water?

    <p>Because it does not involve a slightly positive hydrogen and a slightly negative atom</p> Signup and view all the answers

    How does the strength of intermolecular forces affect how molecules are packed together?

    <p>Strong intermolecular forces result in substances with molecules packed more closely together</p> Signup and view all the answers

    In what situations do intermolecular interactions occur?

    <p>When molecules, ions, or atoms are close to each other and oppositely charged</p> Signup and view all the answers

    Which type of intermolecular force is the strongest?

    <p>Hydrogen bond</p> Signup and view all the answers

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