Other questions in this quiz

2. What is a dative covalent bond?

  • A bond formed from the overlap of an empty orbital and a lone pair
  • A bond with a large difference in electronegativity between the two atoms
  • A bond vunerable to nucelophilic attack
  • A bond where one atom donates 3 electrons

3. If a molecule has two bonded and two lone pairs; it's ...

  • trigonal bipyramidal
  • tetrahedral
  • v-shaped
  • got a bond angle of 109.5

4. Which of these has the lowest boiling point?

  • 2-methylhexane
  • 2,2,dimethylpropane
  • But-1-ene
  • ethanol

5. What causes ice to be less dense than liquid water?

  • Hydrogen bonds between molecules in ice create an open and spaced "cage" structure, which breaks down on melting
  • Molecules vibrate more when cold and thus move apart, making the solid less dense
  • Molecules pack more efficiently in the water liquid due to strong hydrogen bonds pulling molecules together at 180o of each other
  • There are no intermolecular interactions between molecules as solids so the molecules drift apart

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