Question

Grapite is a conductor of electricity give reason

Answer 1

Graphite is an important allotropic form of carbon. It is a good conductor of electricity. It is used extensively for making core of electrochemical cells (Dry Cell) and Lead pencil. Graphite has a 3 D network structure. It consists of only carbon atoms. In graphite each carbon atom is covalently bonded to three other carbon atoms. This arrangement makes layers of hexagonal rings that can slip past one another. In graphite each carbon atom has a free electron in its outermost energy shell. This free electron is responsible for conductivity of electricity through graphite.

Answer 2

Answer:

Graphite:-

• Is a layered structure.
• These layers are held by Van der Waals forces and distance between those layers is 340 pm.
• Each layers has hexagonal rings of carbon atoms.
• Each carbon atom of those rings undergoes $sp^{2}$ hybridization and makes three sigma bonds with three neighboring carbon atoms.
• Forth electron forms a π bond.
• The electrons are delocalised over the whole sheet.
• Electrons are mobile and, therefore, graphite conducts electricity along the sheet.