Question

Graphite is the least stable form of carbon.
A. True
B. False

Answer 1

Hint: Graphite is the allotrope or the other of carbon which has the same physical state but has different physical and chemical properties. Due to the sharing of electrons a bond is formed known as covalent bond which is strong and cannot break easily.

Complete step by step answer:
-As we know that carbon has mainly three allotropes i.e. diamond, graphite and fullerenes.
-Among them, diamond is considered as the hardest element whereas graphite is considered as the stable form of the carbon.
-This is so because in graphite the carbon atom makes only three only bonds with each carbon atom and one electron remains free.
-The carbon-carbon atom makes a covalent bond with each other which is formed by the sharing of the electron pair.
-So, mainly these factors are responsible for the stability of the graphite.
-But also in graphite, the layers are formed in which each layer is known as graphene and the bond present between each layer is weak due to which they can slide on each other.
-So, the given statement is incorrect because graphite is considered as the most stable form of carbon.
-Moreover, the free-electron found free in the structure is also responsible for the conduction of the electricity and also it increases the attraction between the carbon-carbon bonds.
So, the correct answer is “Option B”.

Note:Diamond is considered as the hardest form of carbon atom because in the diamond all the four electrons are responsible for making the bond. Due to which it cannot conduct electricity and heat like graphite.