Question

At which one of the following does carbon occur  in its purest form in nature ?
Diamond
Graphite
Carbon black
Coal

Answer 1

Answer:

Explanation:

Diamond

Answer 2

Answer:

Diamond is the purest form of carbon. Different forms of the same chemical substance are called allotropes. Graphite and diamond are two major allotropes of carbon. Diamond is a form of carbon in which each carbon atom is covalently bonded to four other carbon atoms.

Explanation: