Question

Define allotrophy and names the allotropes of carbon?

Answer 1

The branch of science that deals with the various possible phisical forms of an element is called allotrphy.
Diamond
Graphite
Buckminsterfullerene
are common allotropes of carbon.

Hope u got that

Answer 2

the existence of two or more different physical forms of a chemical element is known as allotropy. they have same chemical properties but different physical properties.

allotropes of carbon:

1. diamond
2. graphite
3. buckminsterfullerene