Which of the following sets contains only thermoplastics?

1.	Which of the following sets contains only thermoplastics?
A.	PVC, PMMA, polystyrene
B.	Polythene, Bakelite, nylon-6
C.	Glyptal, Melmac, PAN
D.	Polypropylene, urea-formaldehyde, Teflon
Answer» B. Polythene, Bakelite, nylon-6

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Which of the following sets contains only thermoplastics?

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