Multiple choice general knowledge science & technology

The lead of a pencil mainly contains

  1. Carbon black

  2. Plastics

  3. Lead

  4. Graphite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pencil 'lead' is actually graphite, a form of carbon, not the metal lead. The misnomer dates back to when graphite was mistaken for a lead ore. Graphite's layered structure allows smooth marking on paper.

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