UPPSC 2019 General Studies I Solved Paper

(b) Kevlar is a heat-resistant and strong synthetic fiber. It was first synthesised in 1965. A fullerene is an allotrope of carbon. It was discovered in 1985. Graphene is an allotrope of carbon in the form of a single layer of atoms in a twodimensional hexagonal lattice. It was discovered in 2004. Black gold was discovered by the Indian scientists in 2019. It is capable of absorbing light and carbon dioxide.