Which of the following allotropes of carbon are conductors of electricity?

Diamond

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Fullerene

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Graphite

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Graphene

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Solution

The correct options are
B
Fullerene

C
Graphite

D
Graphene

Diamond is a poor conductor of electricity due to the absence of valence electrons but a good conductor of heat.

Graphite is covalently bonded with three surrounding carbon atoms thus has valence electron that makes them electric conductors. Graphene resembles a single layer of graphite and can conduct electricity much better than graphite.

Fullerene has a valence electron since one electron remains unbonded while they make pentagons and hexagons.

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Similar questions

Which of the following are allotropes of carbon?

1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite

Q8. Consider the following statements about Magnesium diboride:

1. Graphene – a single layer of carbon arranged in a honeycomb – isolated from pencil graphite.

2. The graphene discovery had won the Nobel physics prize in 2010.

Which of the above statements are correct?

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