Polymers Question 139
Question: Which one of the following in used to make ’non-stick’ cookware
[CBSE PMT 1997; AIIMS 1998]
Options:
A) PVC
B) Polystyrene
C) Polyethylene terephthalate
D) Polytetrafluoroethylene
Show Answer
Answer:
Correct Answer: D
Solution:
Teflon has great chemical inertness and high thermal stability, hence used for making non-stick utensils. For this purpose, a thin layer of teflon is coated on the inner side of the vessel.