Question

What is the term used for allotropes of carbon which are cylindrical nanostructure and extremely strong, thermally conductive, and very toxic?

• A. Nanotubes
• B. Nanobulbs
• C. Microtubules
• D. Nanofibre

Answer 1

The correct option is A

Nanotubes

These nanostructure of carbon allotropes are called nanotubes. Their walls are formed by one-atomic-thick sheets of graphene which are extremely strong. These are thermally conductive. They are hollow cylindrical tubes and are 10,000 times smaller than human hair, but stronger than steel. They are also good conductors of electricity and heat, and have a very large surface area.