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.