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Which of the following is known as the Black lead?

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in Chemistry – Class 11 by (148k points)
Which of the following is known as the Black lead?

(a) Charcoal

(b) Diamond

(c) Graphite

(d) Fullerenes

This question was addressed to me by my school principal while I was bunking the class.

I'm obligated to ask this question of p-Block Elements topic in section p-Block Elements of Chemistry – Class 11

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Right answer is (c) Graphite

The best I can explain: Graphite is also a crystalline form of allotropic carbon which is dark grey in color, it has hexagonal plates, the hybridization of carbon is sp^2 and it is a good conductor of heat and electricity due to the presence of electrons. It is known as a black lead and it is also a very good lubricant.

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