Question

write down any four amorphous forms of carbon ?

Answer 1

amorphous carbon is the name used for coal, soot, carbide-derived carbon, and other impure forms of carbon that are neither graphite nor diamond.

Answer 2

Amorphous carbon

1Amorphous carbon is free, reactive carbon that does not have any crystalline structure (also called diamond-like carbon).
2...In mineralogy, amorphous carbon is the name used for coal, soot, carbide-derived carbon, and other impure forms of carbon that are neither graphite nor diamond.
3,
Because of the ways that carbon forms bonds, the pure element can exist in different forms. Diamond, graphite, fullerenes, and nanotubes are four forms of the element carbon.