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Pick out the wrong statement. | |
A. | Linear polymers are formed from bifunctional groups only and are normally thermoplastic. [Wrong Answer] |
B. | Cross-linked branched chain polymers are either elastometric or thermosetting. [Wrong Answer] |
C. | Branching in case of cross-linked polymers caused by small amount of impurities in bifunctional monomer formulation reduces its solubility and increases the softening point. [Wrong Answer] |
D. | Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction. [Correct Answer] |