Which element is a non-metal but is a good conductor of electricity (used in pencils)?
ASulfur
BSilicon
CGraphite
DPhosphorus
Explanation
Graphite is a crystalline form of carbon. Unlike most non-metals, its structure allows electrons to move freely, making it a good conductor of electricity.
Exam Relevance
- Topic: Physics, Biology, Chemistry & Astronomy
- Subtopic: Human Anatomy, Earth Science, Solar System & Basic Principles
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