Multiple choice general knowledge science & technology

The lead of a pencil mainly contains

  1. carbon black

  2. graphite

  3. lead

  4. plastic
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pencil lead is actually made of graphite, a form of carbon, not metallic lead. The misnomer comes from historical confusion when graphite was thought to be a form of lead. Carbon black is a pigment, plastic is used in pencil casings, and actual lead is toxic - none are used in pencil cores.

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