Starter quiz

  • The presence of which type of bond is a key feature in giant covalent structures?
    • Ionic bonds
    • Covalent bonds  ✓
    • Metallic bonds
  • Which property is typical of substances with giant covalent structures?
    • high melting and boiling points  ✓
    • conductivity in their solid state
    • low melting and boiling points
    • soluble in water
  • What distinguishes a giant covalent structure from a simple molecular structure?
    • the type of atoms involved
    • the presence of ionic bonds
    • the size and regularity of the structure  ✓
    • their electrical conductivity
    • their solubility in water
  • Which diagram below shows a model of a giant covalent substance?
    • sodium chloride (NaCl)
      sodium chloride (NaCl)
    • silicon dioxide (SiO₂)
      silicon dioxide (SiO₂)  ✓
    • nitrogen (N₂)
      nitrogen (N₂)
    • iron (Fe)
      iron (Fe)
  • Which properties are typically found in simple molecular substances but not in giant ionic structures?
    • high electrical conductivity
    • inability to dissolve in water  ✓
    • low melting and boiling points  ✓
    • flexibility and malleability
  • In giant covalent structures, atoms are bonded covalently in a large 3D lattice resulting in high melting and boiling points. Match each part of this sentence to the correct term.
    • bonding
      ⇔
      covalent ✓
    • structure type
      ⇔
      giant covalent ✓
    • property
      ⇔
      high melting and boiling points ✓
    • structure description
      ⇔
      large 3D lattice ✓
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