NDA 2019 Chemistry question

Which one of the following statements about diamond and graphite is not correct ?

(A)Diamond has a tetrahedral structure, whereas graphite has a hexagonal planar structure.
(B)Both physical and chemical properties of diamond and graphite are different.Correct
(C)Graphite is soft but diamond is hard.
(D)Graphite is a good conductor of electricity while diamond is not.

Answer: (B)

Solution

Diamond and graphite are allotropes of carbon: they differ in physical properties (hardness, conductivity, structure) but have the same

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-031450