Which of the following statements correctly identifies a key property of diamond, an allotrope of carbon, that distinguishes it from graphite?
Diamond is a non-conductor of electricity due to the absence of free electrons.
In diamond, every carbon atom is covalently bonded to four other carbon atoms in a rigid three-dimensional network, so there are no free or delocalised electrons.
Because there are no mobile charge carriers, diamond does not conduct electricity -- unlike graphite, which has delocalised electrons between its layered structure.
Hence, this is the correct answer.
Similar Questions
Phosphoric acid (H3PO4) is composed of which of the following ions?
Which of the following best describes a molecule of a compound?
Which statement explains why covalent compounds generally have low melting points?
Which of the following pairs of elements is most likely to form an ionic bond?
When a non-metal gains electrons, it forms:
What is the valency of oxygen in MgO?
If a metal and a non-metal is mixed to form a compound, which type of charged species is most likely present, and how are they classified?
Which of the following properties of carbon leads to the formation of a large number of compounds?
Which property is most commonly observed in ionic compounds like sodium chloride?
What type of bond is formed between a metal and a non-metal?
Important Questions from Chemical Bond and Molecular Structure
Ozone is:
Which of the following has sp 3d hybridization?
How many geometrical isomers are possible for the complex $ [Pt(NH_3)_2Cl_2] $?
Sulphur exhibit variable Valency due to
The compound 1, 2-butadiene has:
