Q. Which one of the following is an example of a thermosetting polymer?
A) [image:2014_Q80_opt_a.png]
B) [image:2014_Q80_opt_b.png]
C) [image:2014_Q80_opt_c.png]
D) [image:2014_Q80_opt_d.png]
Explanation
[Solution] Bakelite (phenol–formaldehyde, structure 4) is a cross-linked thermosetting polymer; neoprene, PVC and nylon-6,6 are not. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.