Assertion: Glypal is obtained by condensation polymerization of ethylene glycol and terephthalic acid. Reason: Glyptal is used in the manufacture of fabrics.

Correct assertion: Glyptal is obtained by condensation polymerization of ethylene glycol and phthalic acid. Correct reason: Glyptal is used in the manufacture of paints and lacquers. Comprehension Based Question A large number of simple molecules called monomers combine together to form a macromolecule called a polymer. Each polymer has a repeating structural unit. If the repeating structural unit is derived from one type of monomer molecules, the polymer is said to be a homopolymer and if it is derived from two or more different types of monomer molecules, the polymer is said to be a copolyme