Respuesta :
[tex]\huge{\purple{\underline{\underline{\rm{\pink{ANSWER:-}}}}}}[/tex]
[tex]\large{\orange{\underline{\underline{\tt{\green{allotropy:-}}}}}}[/tex]
- When a solid exists in different crystalline form with a different physical properties is called as allotropy.
- There are basic 5 allotropic form of carbon which are diamond, graphite, fullerene, carbon nanotubes and graphene.
[tex]\large{\red{\underline{\underline{\tt{\blue{1) \: diamond:-}}}}}}[/tex]
- In diamond each carbon atom is sp³ hybridized.
- It is hardest natural substance with melting point of 3930°C.
- Diamond is bad conductor of electricity.
[tex]\large{\red{\underline{\underline{\tt{\blue{2) \: graphite:-}}}}}}[/tex]
- In graphite each carbon atom is sp² hybridized.
- Layers of graphite are hailed by weak Vander walls force.
- Graphite is soft & slippery in nature.
[tex]\large{\red{\underline{\underline{\tt{\blue{3) \: fullerene:-}}}}}}[/tex]
- In fullerene each carbon atom is sp² hybridized.
- Fullerene are made by heating graphite electrodes in presence of inert gas.
- C60 fullerene is the most common type and is also called as buckminister fullerene or Bucky ball.
[tex]\large{\red{\underline{\underline{\tt{\blue{4) \: carbon \: nanotubes:-}}}}}}[/tex]
- Carbon nanotubes are cylindrical in shape.
- Carbon nanotubes are robust and can be bent easily.
- They have high electrical conductivity.
[tex]\large{\red{\underline{\underline{\tt{\blue{5) \: graphene:-}}}}}}[/tex]
- Isolated layer of graphite is called graphene.
- Graphene sheet is a 2-dimensional solid.
