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Carbon: Allotropes Video Lecture | Chemistry Class 12 - NEET

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FAQs on Carbon: Allotropes Video Lecture - Chemistry Class 12 - NEET

1. What are the different allotropes of carbon?
Ans. Carbon has several allotropes, including diamond, graphite, graphene, fullerenes (such as buckminsterfullerene or C60), and carbon nanotubes. Each allotrope has its own unique structure and properties.
2. What is the structure of diamond?
Ans. Diamond is a crystalline allotrope of carbon with a rigid three-dimensional network of carbon atoms. Each carbon atom is covalently bonded to four other carbon atoms in a tetrahedral arrangement, resulting in a strong and stable structure.
3. How is graphite different from diamond?
Ans. Graphite is another allotrope of carbon but has a different structure than diamond. In graphite, carbon atoms are arranged in layers called graphene sheets, where each carbon atom is bonded to three others in a trigonal planar arrangement. These layers are held together by weak Van der Waals forces, allowing them to slide over each other, giving graphite its lubricating properties.
4. What is graphene and its properties?
Ans. Graphene is a single layer of graphite, consisting of a two-dimensional sheet of carbon atoms arranged in a hexagonal lattice. It is incredibly thin, lightweight, and possesses exceptional mechanical, electrical, and thermal properties. Graphene is known for its high strength, electrical conductivity, and thermal conductivity, making it a promising material for various applications.
5. What are carbon nanotubes and their applications?
Ans. Carbon nanotubes are cylindrical structures formed by rolling up a single layer of graphene. They can have different diameters and lengths, with unique properties depending on their structure. Carbon nanotubes have excellent mechanical strength, electrical conductivity, and thermal conductivity. They find applications in fields like electronics, aerospace, energy storage, and medicine, due to their exceptional properties.
150 videos|378 docs|213 tests
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