Q. Consider the following statements about carbon nanotubes:
1. These are cylindrical molecules consisting of rolled-up sheets of single-layer carbon atoms .
2. They have very high tensile strength.
Which of the statements given above is/are correct?
Answer: C
Notes:
Carbon Nanotubes
- Carbon nanotubes (CNTs) are cylindrical molecules that consist of rolled-up sheets of single-layer carbon atoms (graphene).
- Carbon nanotubes are composed of carbon atoms linked in hexagonal shapes, with each carbon atom covalently bonded to three other carbon atoms.
- They can be single-walled with a diameter of less than 1 nanometre (nm) or multi-walled, consisting of several concentrically interlinked nanotubes, with diameters reaching more than 100 nm.
- Carbon Nanotubes are stronger than steel wires and have high thermal and electrical conductivity.
- They are very elastic and have very high tensile strength.
- Carbon nanotubes have the highest strength-to-weight ratio of any known material.
- Carbon nanotubes have the potential to be used as semiconductors, for example, potentially replacing silicon in a wide variety of computing devices.
Source: ForumIAS
