Gr 11 Physical Sciences: Ch 4.1 Intermolecular and interatomic forces
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Questions and Answers

What type of intermolecular force occurs between an ion and a non-polar molecule?

  • Dipole-Dipole Force
  • Hydrogen Bonding
  • Ion-Induced Dipole Force (correct)
  • Ion-Dipole Force

    • Which type of intermolecular force is responsible for the attraction between two polar molecules?

  • London Dispersion Force
  • Ion-Dipole Force
  • Dipole-Dipole Force (correct)
  • Dipole-Induced Dipole Force

    • What is the term used to describe a molecule with a slightly positive charge (δ+) and a slightly negative charge (δ−)?

  • Dipole (correct)
  • Polar Molecule
  • Non-Polar Molecule
  • Ion

    • Which type of intermolecular force is present in all molecules?

    <p>Induced Dipole Force</p> Signup and view all the answers

    What type of intermolecular force occurs between a polar molecule and a non-polar molecule?

    <p>Dipole-Induced Dipole Force</p> Signup and view all the answers

    What is the result of a difference in electronegativity between atoms in a molecule?

    <p>A polar molecule</p> Signup and view all the answers

    Which of the following is an example of Dipole-Induced Dipole Forces?

    <p>Chloroform in carbon tetrachloride</p> Signup and view all the answers

    What is the special case of Dipole-Dipole Forces?

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

    Which type of atom is typically involved in forming hydrogen bonds?

    <p>Highly electronegative atoms like oxygen, nitrogen, or fluorine</p> Signup and view all the answers

    What is a characteristic of intermolecular forces?

    <p>They occur between molecules and are generally weaker than interatomic forces</p> Signup and view all the answers

    Which of the following properties is NOT affected by intermolecular forces?

    <p>Electrical conductivity</p> Signup and view all the answers

    What is the relationship between molecular size and intermolecular forces?

    <p>Larger molecules have stronger intermolecular forces</p> Signup and view all the answers

    Which of the following is an example of a substance with strong intermolecular forces?

    <p>Water</p> Signup and view all the answers

    What is the result of stronger intermolecular forces on a substance's thermal expansion?

    <p>It expands more slowly when heated</p> Signup and view all the answers

    Which of the following is a result of weaker intermolecular forces?

    <p>Faster evaporation</p> Signup and view all the answers

    What is the relationship between solubility and intermolecular forces?

    <p>Substances dissolve in solvents with similar intermolecular forces</p> Signup and view all the answers

    What is a characteristic of hydrogen bonds?

    <p>They are a relatively strong intermolecular force</p> Signup and view all the answers

    What is the primary difference between intermolecular and interatomic forces?

    <p>The location of the forces within a molecule</p> Signup and view all the answers

    What is the result of strong intermolecular forces on a substance's phase of matter?

    <p>It becomes a solid</p> Signup and view all the answers

    What is the relationship between viscosity and intermolecular forces?

    <p>Stronger intermolecular forces result in higher viscosity</p> Signup and view all the answers

    What is the result of increasing the number of carbon atoms in an organic compound like an alkane?

    <p>The boiling point and melting point increase</p> Signup and view all the answers

    What is the relationship between surface tension and intermolecular forces?

    <p>Stronger intermolecular forces result in higher surface tension</p> Signup and view all the answers

    What is the result of weaker intermolecular forces on a substance's evaporation rate?

    <p>It evaporates faster</p> Signup and view all the answers

    What is the relationship between thermal conductivity and intermolecular forces?

    <p>Free electrons are responsible for thermal conductivity</p> Signup and view all the answers

    What is the primary factor that determines the polarity of a molecule?

    <p>The difference in electronegativity between its atoms</p> Signup and view all the answers

    Which type of intermolecular force is responsible for the attraction between an ion and a polar molecule?

    <p>Ion-Dipole Forces</p> Signup and view all the answers

    What is the name of the temporary dipole that occurs in non-polar molecules?

    <p>Induced Dipole</p> Signup and view all the answers

    Which type of intermolecular force is responsible for the attraction between two non-polar molecules?

    <p>Induced Dipole Forces (London Dispersion Forces)</p> Signup and view all the answers

    What is the result of a polar molecule inducing a dipole in a non-polar molecule?

    <p>Dipole-Induced Dipole Forces</p> Signup and view all the answers

    What is the term used to describe the attraction between the positive and negative poles of two polar molecules?

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

    Which type of intermolecular force is responsible for the attraction between a polar molecule and a non-polar molecule?

    <p>Dipole-Induced Dipole Forces</p> Signup and view all the answers

    What is the term used to describe a molecule that has a slightly positive charge (δ+) and a slightly negative charge (δ−)?

    <p>Dipole</p> Signup and view all the answers

    What is the primary reason why hydrogen bonds are relatively strong intermolecular forces?

    <p>They occur between molecules with highly electronegative atoms</p> Signup and view all the answers

    Which of the following is an example of a substance that exhibits strong intermolecular forces due to the presence of hydrogen bonds?

    <p>Water</p> Signup and view all the answers

    What is the primary difference between intermolecular forces and interatomic forces?

    <p>Intermolecular forces occur between molecules, while interatomic forces occur within molecules</p> Signup and view all the answers

    Which of the following properties is most affected by the strength of intermolecular forces?

    <p>Viscosity</p> Signup and view all the answers

    What is the relationship between molecular size and intermolecular forces in organic compounds like alkanes?

    <p>Larger molecules have stronger intermolecular forces</p> Signup and view all the answers

    What is the result of weaker intermolecular forces on a substance's boiling point?

    <p>The boiling point decreases</p> Signup and view all the answers

    What is the relationship between surface tension and intermolecular forces?

    <p>Stronger intermolecular forces result in higher surface tension</p> Signup and view all the answers

    What is the result of stronger intermolecular forces on a substance's viscosity?

    <p>The viscosity increases</p> Signup and view all the answers

    Which of the following is a characteristic of dipole-dipole forces?

    <p>They are responsible for the attraction between the positive and negative poles of two polar molecules</p> Signup and view all the answers

    What is the primary reason for the existence of ion-dipole forces?

    <p>The presence of a permanent dipole in a polar molecule</p> Signup and view all the answers

    Which of the following statements is true about induced dipole forces?

    <p>They are present in all molecules, but are the only forces in non-polar molecules</p> Signup and view all the answers

    What is the term used to describe the temporary dipole that occurs in non-polar molecules?

    <p>Induced dipole</p> Signup and view all the answers

    Which of the following is an example of a dipole-induced dipole force?

    <p>The attraction between a polar molecule and a non-polar molecule, such as chloroform in carbon tetrachloride</p> Signup and view all the answers

    What is the primary difference between intermolecular and interatomic forces?

    <p>Intermolecular forces occur between molecules, while interatomic forces occur between atoms</p> Signup and view all the answers

    Which of the following types of intermolecular forces is responsible for hydrogen bonding?

    <p>Dipole-dipole forces, in a special case</p> Signup and view all the answers

    What is the result of a difference in electronegativity between atoms in a molecule?

    <p>The formation of a permanent dipole, resulting in a polar molecule</p> Signup and view all the answers

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