Which of the following statements about graphite is true?
It has a low melting point.
It is soluble in water.
It is a good thermal insulator.
It is composed of carbon atoms arranged in a 2D network.
Graphite is composed of carbon atoms arranged in a 2D layered structure, not a 3D network. It is composed of carbon atoms arranged in a 2D layered structure. It has a very high melting point, is not soluble in water, and is a good thermal conductor.
Hence option 4 is the correct answer.
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