Question

what are the different forms in which carbon exists in nature

Answer 1

In free state carbon exists as crystallise and amorphous form.

1. Diamond
2. Graphite
3. Carbon Nanotube
4. Buckminsterfullerene (C₆₀)
5. Graphene
6. Glassy carbon
7. Carbon nanofoam
8. Amorphous form:

• Charcoal

Wood charcoal
Animal charcoal
Bone charcoal
Blood charcoal
Sugar charcoal

• Lamp black
• Coke
• Gas carbon

As compound, carbon exists as oxides, carbonates, carbides, cyanides, and in organic compounds.