QUESTION: Which of the following is not an allotrope of carbon?
A Diamond
B Graphite
C Cumene
D Fullerene
ANSWER:
Cumene
| Allotropic Form of carbon |
Structure |
Uses |
| Diamond |
Each carbon atom is tetrahedrally bonded to four other carbon atoms. |
· Gemstones
· Industrial cutting tools
· Electronics
· Abrasives. |
| Graphite |
Layers of hexagonal carbon atoms arranged in a honeycomb lattice. |
· Pencils (as graphite)
· Lubricants
· Batteries
· Thermal management materials |
| Fullerene |
Molecules of carbon atoms arranged in spherical or cage-like structures. |
· Nanotechnology
· Drug delivery
· Superconductors |
| Graphene |
Single layer of hexagonally arranged carbon atoms in a 2D honeycomb lattice. |
· Electronics
· Nanomaterials
· Composites
· Sensors |
| Carbon Nanotubes |
Rolled-up graphene sheets into cylindrical tubes forming single or multiple walls. |
· Nanotechnology
· Conductive materials
· Structural components |
| Amorphous Carbon |
Randomly arranged carbon atoms without a specific repeating pattern. |
· Carbon black in tires
· Pigments
· Adsorbents
· Water filtration |
