Quiz on Carbon Allotropes

In diamond, how many other carbon atoms is each carbon atom covalently bonded to?

• 2

• 3

• 4

• 5

What is a key property of diamond?

• Conducts electricity

• Very soft

• High melting point

• Low melting point

Why is graphite slippery?

• Strong covalent bonds between layers

• Weak intermolecular forces between layers

• High density

• High melting point

What allows graphite to conduct electricity?

• Strong covalent bonds

• Delocalised electrons

• High melting point

• High density

What is graphene?

• A single layer of diamond

• A single layer of graphite

• A single layer of fullerene

• A single layer of carbon nanotubes

What makes graphene useful in electronics?

• Its softness

• Its elasticity and strength

• Its high melting point

• Its ability to conduct heat

What is a fullerene?

• A molecule of carbon atoms with hollow shapes

• A molecule of carbon atoms with solid shapes

• A molecule of carbon atoms with flat shapes

• A molecule of carbon atoms with liquid shapes

What is the shape of Buckminsterfullerene (C60)?

• Cubic

• Spherical

• Cylindrical

• Flat

What are carbon nanotubes known for?

• High width to length ratios

• High length to diameter ratios

• High density

• High melting point

What is one use of carbon nanotubes?

• Conducting electricity

• Reinforcing materials

• Insulating heat

• Absorbing water