Match the polymers given in Column I with their commercial names given in Column II.
Match the polymers given in Column I with their commercial names given in Column II.
| Column I | Column II |
| (i) Polyester of glycol and phthalic acid | (a) Novolac |
| (ii) Copolymer of 1, 3-butadiene and styrene | (b) Glyptal |
| (iii) Phenol and formaldehyde resin | (c) Buna-S |
| (iv) Polyester of glycol and terephthalic acid | (d) Buna-N |
| (v) Copolymer of 1, 3-butadiene and acrylonitrile | (e) Dacron |
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