Graphite is the allotrope of carbon. Allotropes are chemical compounds of the single element present and arranged in a complex form.
The uses of the graphite are as follows:-
Graphite the is allotropes of the carbon which means it has a free electron in the valence shell. In graphite, there is one free electron which moves from one place to another.
The movement of transferring the electron in the compound can allow the graphite to conduct heat.
Hence, the free electron is the answer.
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