Identify the monomers use to prepare glyptal.

Step-by-step solution

Glyptal is a polyester resin formed through condensation polymerization of ethylene glycol and phthalic acid, where ester linkages form between hydroxyl and carboxyl groups. The monomer combinations are analyzed: Option A : -hydroxy butyric acid and -hydroxy valeric acid polymerize to form PHBV, not glyptal. Option B : Ethylene glycol and phenol cannot form a polyester structure due to the absence of dicarboxylic acid functionality. Option C : Ethylene glycol and terephthalic acid yield Dacron (Terylene), a differe