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| 1. |
Which of the following are thermoplastic polmers ?A. Polythene , urea-formaldehyde , polyvinylsB. Bakelite , polythene, polystyreneC. Polythene, polystyrene, polyvinylsD. Urea-formaldehyde, polystyrene, bakelite |
| Answer» Correct Answer - C | |