Which one among the following is not a form of carbon?
Graphene
Graphite
Fullerene
Quartz
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC CAPF – 2013
– Graphene, Graphite, and Fullerene are all allotropes of carbon. Graphene is a single layer of carbon atoms in a hexagonal lattice. Graphite is composed of multiple layers of graphene stacked together. Fullerenes are carbon molecules forming hollow spheres, ellipsoids, or tubes (like buckyballs).
– Quartz, on the other hand, is a mineral composed of silicon and oxygen, with the chemical formula SiO2 (silicon dioxide). It is a major component of the Earth’s crust. Therefore, quartz is not a form of carbon.