Which of the following properties are unique about carbon?
These properties of carbon are unique.
Tetravalency: As the valency of carbon is four, it is capable of bonding with four other atoms.
Catenation: The property of an atom of an element to join with other atoms of the same element to form long chains.
Allotropy: Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of these elements.