JEE Main 2022 Chemistry question
Match list-I with List-II. List-I (Polymers): A. Phenol-formaldehyde resin B. Copolymer of 1,3-butadiene styrene C. Polyester of glycol and phthalic acid D. Polyester of glycol and terephthalic acid List-II (Commercial names): I. Glyptal II. Novolac III. Buna-S IV. Dacron Choose the correct answer from the option given below:
Answer: (2)
Solution
The phenol–formaldehyde resin is novolac, the copolymer of 1,3-butadiene and styrene is Buna-S, the polyester of
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