(d)
Nylon-6 6 is polymer of
COOH —(CH_{2})_{4} —COOH
Adipic acid and H_{2}N —(CH_{2})_{6} —NH_{2}
(hexamethylenediamine)
$\therefore$Nylon-66 has nitrogen in it.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.