Question 8
Carbon and its CompoundsWhich of the following is the best conductor of electricity?
- A.diamond
- B.graphite
- C.silicon
- D.sulphur
Show the answer and explanation
Answer: B (graphite)
Explanation
In graphite each carbon uses only three electrons for bonding; the fourth is delocalised and free to carry current. Diamond and sulphur are insulators and silicon is only a semiconductor.