Worksheet: Allotropes of Carbon

In this worksheet, we will practice describing the carbon allotropes graphite, diamond, fullerenes, and nanotubes and comparing their physical properties.

Q1:

Carbon has many allotropes. Which of the following allotropes of carbon has a simple molecular structure?

  • ABuckminsterfullerene
  • BDiamond
  • CGraphene
  • DGraphite

Q2:

Which of the following is the best description of graphene?

  • ASpherical shells of carbon atoms arranged into pentagons and hexagons
  • BA one-atom-thick sheet of carbon atoms arranged into hexagons
  • CA one-atom-thick sheet of carbon atoms in a diamond-like arrangement
  • DCubic lattices of carbon atoms in a diamond-like arrangement
  • EA one-atom-thick sheet of carbon atoms folded into a cylinder

Q3:

Which of the following features of fullerenes makes them suitable for use as industrial catalysts?

  • AHigh surface area
  • BLow density
  • CDark color
  • DLow solubility
  • EFlammability

Q4:

Which feature of graphite is responsible for its electrical conductivity?

  • AStrong covalent bonds
  • BA high sublimating temperature
  • CWeak interlayer interactions
  • DDelocalized electrons

Q5:

Which of the following is not a likely use of fullerenes?

  • ADrug delivery agents
  • BPigments
  • CElectrodes
  • DSolvents
  • ECatalysts

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