Q.Distinguish between a homopolymer and a copolymer, giving one example of each.

A homopolymer is formed from a single repeating monomer -- polythene, built entirely from ethene units, is the clearest example, where the resulting chain has one clearly defined repeat unit made consistently from the same starting material. A copolymer, by contrast, is formed by polymerising TWO different monomers TOGETHER in the same addition reaction, so that both kinds of monomer unit are incorporated, typically in a random or non-strictly-alternating sequence along the SAME chain -- Buna-S, copolymerised from buta-1,3-diene and styrene by a free-radical mechanism, is the clearest syllabus example, its chain containing both …

Count how many chemically distinct monomer types are incorporated into a single polymer chain -- one signals a homopolymer, two or more …

Classifying nylon-6,6 (which alternates two DIFFERENT condensation monomers in a strictly regular pattern) the same way as a random ADDITION copolymer like Buna-S -- the key distingui …