Question

The crystalline forms of carbon have:

• A. sharp melting point
• B. definite geometrical shape
• C. low boiling point
• D. regular arrangement of atoms

Answer 1

Answer: (A), (B), (D)

The correct options are
A sharp melting point
B definite geometrical shape
D regular arrangement of atoms

Crystalline forms of carbon are a type of allotropes of carbon that have a regular arrangement of carbon atoms in it. Because of this, they have a definite geometrical shape, sharp and high melting as well as boiling point.

Examples of crystalline forms of carbon include diamond, graphite and fullerene.