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Properties and Usage of Graphite

Graphite has ...

Question

Graphite has a melting point than/to that of diamond.

A

higher

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B

lower

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C

equal

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Solution

The correct option is B lower
Graphite and diamond are crystalline allotropes of carbon. However, graphite has a lower melting point than that of diamond. This is because, in diamond, the carbon atoms are covalently bonded giving rise to 3-D rigid structure.

Whereas in graphite, the hexagonal layers of carbon atoms are held together by weak van der Waals force.

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