Question

On the basis of structure of graphite which of the following is/are true for it?

• A. It is a diamagnetic substance.
• B. It behaves like metallic conductor as well as semiconductor.
• C. C-C bond length in it is more than the diamond.
• D. It is thermodynamically more stable as well as more dense then diamond.

Answer 1

Answer: (A), (B)

The correct options are
A It is a diamagnetic substance.
B It behaves like metallic conductor as well as semiconductor.

(A) (B) Correct statements.
(C) Graphite $s{p}^2$ hybridisation bond length $1.42A^o$; diamond $s{p}^3$ hybridisation bond length $1.54A^o$.
(C) Diamond more dense (3.51 g/ml) than graphite (2.25 g/ml)