Which statement explains the lower melting point of buckminsterfullerene compared with graphite?
- ABuckminsterfullerene exists as discrete molecules with weak intermolecular bonding.
- BGraphite is partly ionic as its structure contains mobile electrons and it conducts electricity.
- CThe carbon-carbon bonds in buckminsterfullerene are shorter and more strained.
- DThe mobile electrons in graphite mean it has a metallic structure.