Which is the purest form of carbon

• GC Metals Non-Metals

Which one of the following is the purest form of carbon?

1. Charcoal
2. Coke
3. Fullerene
4. Carbon black

Answer

Fullerenes are the purest for m of carbon because they do not have 'dangling' edge or surface bonds to be attracted to other atoms as in the case with diamond or graphite. 

The correct option is C.