Which of these is NOT an allotropic form of carbon?
ADiamond
BGraphite
CFullerene
DNone of the above
Answer:
D. None of the above
Read Explanation:
Carbon exhibits many allotropic forms; both crystalline as well as amorphous. Diamond and graphite are two well-known crystalline forms of carbon. In 1985, third form of carbon known as fullerenes was also discovered.