Podcast
Questions and Answers
Which of the following allotropes of carbon is the hardest material known?
Which of the following allotropes of carbon is the hardest material known?
- Fullerene
- Carbon nanotube
- Graphene
- Diamond (correct)
Which of the following allotropes of carbon is used as a lubricant?
Which of the following allotropes of carbon is used as a lubricant?
- Fullerene (correct)
- Carbon nanotube
- Diamond
- Graphene
Which of the following allotropes of carbon is commonly used in pencils?
Which of the following allotropes of carbon is commonly used in pencils?
- Graphite (correct)
- Diamond
- Fullerene
- Graphene
Flashcards
Diamond
Diamond
The hardest known material, known for its exceptional strength and refractive properties.
Fullerene
Fullerene
Also known as buckyballs, this allotrope of carbon has spherical or ellipsoidal molecules and is used in lubricants.
Graphite
Graphite
A soft, crystalline form of carbon. It is used in pencils for its ability to leave marks on paper.
