Perspex and polythene are two examples of what?​

Perspex and polythene are good examples of insulators.

Final answer: Perspex and polythene are both examples of polymers, large molecules made from repeating subunits. Perspex, or polymethyl methacrylate, is used as a glass alternative, while polythene is commonly found in plastic bags and containers. These materials highlight the importance and versatility of synthetic polymers in various applications. Explanation: Perspex and polythene are both examples of polymers. Polymers are large molecules composed of many repeating subunits, known as monomers, which are bonded together. These materials are widely used due to their versatile properties, such as durability, flexibility, and resistance to moisture. Perspex, known scientifically as polymethyl methacrylate (PMMA), is often used as a lightweight, shatter-resistant alternative to glass. On the other hand, polythene, or polyethylene, is renowned for its application in the production of plastic bags, containers, and bottles. Both materials exemplify the broad utility and diversity of synthetic polymers, which have countless applications in daily life and industrial processes. The creation, characteristics, and uses of polymers unfold a vast field in chemistry and material science, demonstrating the profound impact of chemical engineering and innovation on the modern world.