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Question
Describe the structure of graphite with the help of a labelled diagram.
Solution
The structure of graphite consists of layers or sheets of carbon atoms which form flat hexagonal rings. In a graphite layer or sheet, each carbon atom is connected to three other carbon atoms by covalent bonds. Each layer of carbon atoms is at a distance with no covalent bonds existing between them. As the various layers of carbon atoms in a graphite crystal are held by weak Van der Waals forces, the layers can slide over each other smoothly.
The following diagram represents the structure of a graphite crystal:
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