Name the following :
Artificially made allotrope of carbon.
Name the following.
The allotrope of carbon used as a superconductor.
Answer the following questions.
(a) What is meant by allotrope? Which are the allotropes of carbon?
(b) How is carbon dioxide gas produced in the laboratory?
(c) Why is graphite used as a lubricant?
(d) How is charcoal made?