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Q.

Which of the following form of carbon is used in making the lead in pencil?

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a

Graphite

b

Coke

c

Fullerene

d

Diamond

answer is B.

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Detailed Solution

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Graphite is an allotrope of carbon is used in making the lead in pencils. It is a greyish-black, opaque substance.

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Which of the following form of carbon is used in making the lead in pencil?