Q. With reference to the Graphene, consider the following statements:
1.It is impermeable to gases or liquids.
2.It is a non-conductor of electricity.
3.It is one of the thinnest and strongest materials known.
Which of the statements given above is/are correct?
Answer: D
Notes:
Graphene is made of a single layers of carbon atoms arranged in a honeycomb lattice. Graphene is stronger and stiffer than diamond, yet can be stretched by a quarter of its length, like rubber. Its surface area is the largest known for its weight.
Despite graphene’s thinness it is impermeable to gases or liquids. It conducts heat and electricity better than copper, and can be made into transistors which are faster than those made from silicon. It makes possible experiments with high-speed quantum particles.
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