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Which one of the following elements is used in pencil-lead?

June 1, 2025 by rawan239

Which one of the following elements is used in pencil-lead?

Zinc

Lead

Carbon (Graphite)

Tin

This question was previously asked in

UPSC NDA-1 – 2017

Download PDF Attempt Online

The element used in pencil-lead is Carbon in the form of graphite.

Pencil ‘lead’ is not made of the metal lead. It is primarily composed of graphite, which is an allotrope of Carbon, mixed with clay.

Graphite is a soft, black, slippery solid that conducts electricity. Its layered structure allows it to leave marks on paper. The amount of clay mixed with graphite determines the hardness of the pencil lead.

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