Q4. Low-density polythene and high-density polythene are polymers of ethene, but there is a marked difference in their properties. Explain.
Answer: Low-density and high-density polythenes are obtained under different conditions. They differ in their structural features. Low-density polythenes are highly branched structures, while high-density polythene is closely packed linear molecules. Close packing increases the density of the polymer. This difference in polymer organisation leads to distinct characteristics in each material.
