Graphene is frequently in news recently. What is its importance? 1. It is a two-dimensional material and has good electrical conductivity. 2. It is one of the thinnest but strongest materials tested so far. 3. It is entirely made of silicon and has high optical transparency. 4. It can be used as 'conducting electrodes' required for touch screens, LCDs and organic LEDs. Which of the statements given above are correct? Correct Answer 1, 2 and 4 only The correct answer is 1, 2 and 4 only. Key Points Graphene is an allotrope of carbon consisting of a single layer of atoms arranged in a two-dimensional honeycomb lattice. The name is a portmanteau of "graphite" and the suffix -ene, reflecting the fact that the graphite allotrope of carbon consists of stacked graphene layers. Graphene is a two-dimensional material and has good electrical conduction. It is one of the thinnest but strongest materials tested so far. It can be used for conducting electrodes required for touch screens, LCDs, and organic LEDs.