CH-314
Giant covalent structures
Chemistry · Secondary 3 · Medium · Giant covalent structures
Which statement best explains why graphite conducts electricity but silicon dioxide does not?
- Graphite has covalent bonds while silicon dioxide has ionic bonds.
- Graphite has free mobile electrons but silicon dioxide has none.
- Graphite has a low melting point but silicon dioxide has a high one.
- Graphite is made of layers while silicon dioxide is not crystalline.
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