Chemistry: Intramolecular vs Intermolecular Forces
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Questions and Answers

What is the role of intramolecular forces?

  • Hold atoms together in a molecule (correct)
  • Attractive forces between molecules
  • Create separation of charge
  • Form positive and negative poles

    • Which type of molecules have permanent dipoles that interact with neighboring molecules?

  • Nonpolar molecules
  • Neutral molecules
  • Polar molecules (correct)
  • Ionic molecules

    • What is the main difference between intramolecular and intermolecular forces?

  • Intermolecular forces create separation of charge
  • Intramolecular forces act between molecules
  • Intermolecular forces hold atoms together within a molecule (correct)
  • Intramolecular forces are weaker

    • Which type of molecular forces are responsible for higher melting and boiling points in polar molecules?

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

    How can trends in melting and boiling points be explained using the relative magnitude of intermolecular forces?

    <p>Based on the interactions between permanent dipoles</p> Signup and view all the answers

    Which force has no separation of charge and does not form positive or negative poles?

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

    What type of forces are hydrogen bonding considered to be?

    <p>Special case of dipole-dipole forces</p> Signup and view all the answers

    Which pairs of molecules exhibit specific hydrogen bonding according to the text?

    <p>Adenine with guanine</p> Signup and view all the answers

    What is the main reason DNA chains are helical?

    <p>Tetrahedral geometry of phosphate groups</p> Signup and view all the answers

    Which type of interaction involves attractions between an ion and a polar molecule?

    <p>Ion-dipole interaction</p> Signup and view all the answers

    In the context of ionic solids, what happens to ion-ion forces as the size of ions decreases?

    <p>They increase</p> Signup and view all the answers

    Which term describes interactions involving induced dipoles in nonpolar molecules?

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

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