Which one of them can conduct electricity in solid state?
Correct answer: B. Graphite
- A. Diamond
- B. Graphite
- C. Nail
- D. Iodine
Explanation
Graphite, C(s) can conduct electricity in a solid state. Graphite is a network solid and conducts electricity as it has delocalized molecular orbitals in which delocalized electrons are free to move. Hence, option B is correct.
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About Electrical Properties of Solids
Electrical properties of solids depend on their band structure, charge carriers and conductivity. The topic compares conductors, insulators and semiconductors, relates resistivity to temperature, and covers intrinsic and extrinsic semiconductors, donor and acceptor impurities, electron and hole conduction, and the formation of p-type and n-type materials.
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