Multiple choice general knowledge

Which of the following is used in pencils?

  1. Charcoal

  2. Silicon

  3. Phosphorus

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

Pencil 'lead' is actually made of graphite, which is a form of carbon. Charcoal is also carbon but used for different purposes. Silicon is used in electronics and phosphorus is a chemical element with other applications.

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