Other questions in this quiz

2. What is a dative covalent bond?

  • A bond vunerable to nucelophilic attack
  • A bond where one atom donates 3 electrons
  • 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

3. Which of these is NOT describing the same shape as the others?

  • Trigonal pyramidal
  • Includes angle of 90
  • Eg PCl5
  • Three atoms are on the same plane

4. What is a pi-bond?

  • The stronger bond in a double bond, with electron density trapped between nuclei
  • The sideways overlap of two p-orbitals
  • The end on overlap of two s-orbitals
  • The end on overlap of two p-orbitals

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

  • Molecules pack more efficiently in the water liquid due to strong hydrogen bonds pulling molecules together at 180o of each other
  • 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
  • There are no intermolecular interactions between molecules as solids so the molecules drift apart

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