Which of the following is not an allotrope of carbon?
A)coal
B)diamond
C)fullerene
D)graphite

Question

Quizplus · Accepted Answer

While coal is a carbon-based substance, it is not considered an allotrope of carbon because it is not a pure form of carbon. Coal is a naturally occurring sedimentary rock that usually contains a mixture of carbon, organic compounds, minerals, and other elements. Diamond, fullerene, and graphite, on the other hand, are pure forms of carbon that exhibit different physical and chemical properties.

Which of the Following Is Not an Allotrope of Carbon