Which of the following is a polymer made from ethene?

Low density poly(ethene) (LDPE) is indeed a polymer made from ethene. Ethene, also known as ethylene, is a simple alkene hydrocarbon with the formula C2H4. When ethene molecules undergo a polymerization process, they link together to form long chains, resulting in polymers like LDPE.

LDPE is characterized by its branched structure, which creates a less dense arrangement of polymer chains. This branching is a result of the polymerization process and contributes to its flexible and durable properties. LDPE is commonly used in applications such as plastic bags, food wrap, and various containers due to its lightweight nature and resistance to moisture.

In contrast, other options listed are different types of polymers derived from other monomers. Polystyrene is made from styrene, polyvinyl chloride is derived from vinyl chloride, and polypropylene is synthesized from propylene. None of these polymers originate from ethene, making LDPE the correct choice in this context.