Multiple choice

Which of the following solids is a good conductor of electricity?

  1. Quartz

  2. Ammonia

  3. Diamond

  4. Graphite

  5. Hydrochloric acid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Graphite is a good conductor of electricity because in each layer every carbon atom is linked to three carbon atoms, the fourth electron is free to move about. Presence of these electrons makes it a good conductor.

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