Match List-I with List-II. List-I: A. Phenol-formaldehyde resin, B. Copolymer of 1,3-butadiene and s

Question

Match List-I with List-II. List-I: A. Phenol-formaldehyde resin, B. Copolymer of 1,3-butadiene and styrene, C. Polyester of glycol and phthalic acid, D. Polyester of glycol and terephthalic acid. List-II: I. Glyptal, II. Novolac, III. Buna-S, IV. Dacron. Choose the correct answer:

Professor PC Thomas Classes · Answer

Phenol-formaldehyde (linear) is Novolac (II). Copolymer of 1,3-butadiene and styrene is Buna-S (III). Polyester of glycol and phthalic acid is Glyptal (I). Polyester of glycol and terephthalic acid is Dacron (IV).