Differentiate between crystalline and amorphous forms of carbon.

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Solution

Crystalline forms of carbon Amorphous forms of carbon
1. They have a definite geometric shape. 1. They do not have a definite shape.
2. When broken, each piece has a sharp edge and plane surfaces. 2. When cut or broken, the pieces are not similar and have no sharp edges.
3. They have a definite melting point. 3.They have no melting point.
4. Example : Diamond, graphite, fullerene. 4. Example : Coal, Charcoal, Coke.

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Crystalline forms of carbon	Amorphous forms of carbon
1. They have a definite geometric shape.	1. They do not have a definite shape.
2. When broken, each piece has a sharp edge and plane surfaces.	2. When cut or broken, the pieces are not similar and have no sharp edges.
3. They have a definite melting point.	3.They have no melting point.
4. Example : Diamond, graphite, fullerene.	4. Example : Coal, Charcoal, Coke.