Which of the following is not a condensation polymer ?
Correct answer: C. Poly-methyl-methacrylate (PMMA)
- A. Bakelite
- B. Melamine polymer
- C. Poly-methyl-methacrylate (PMMA)
- D. None of these
Explanation
Bakelite and melamine-formaldehyde are condensation polymers because their formation eliminates small molecules. PMMA forms by addition polymerisation of methyl methacrylate, so it is the exception.
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