POLYMERS 2 10. Which of the following is a polycarbonate? (a) PAN (b) Acrilan (c) Lexan (d) Buna–S. Polycarbonate are the group of thermoplastic polymers having carbonate groups in their chemical structures. Among the given options the polycarbonate is lexan. It is generally used in race car windshields and windows. Hence, the correct answer is option (c) 11. Mark out the most unlike form of polymerization of (a) (b) (c) (d) Its addition polymer. 12. An example of natural biopolymer is (a) nylon (b) rubber (c) teflon (d) DNA The natural polymer which controls the various life processes in the
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