Previous Year Question
Non-stick cooking utensils are coated with—
A.
Black colour
B.
Teflon
C.
PVC
D.
None of these
Correct Answer: B
Detailed Solution
Non-stick cookware is commonly coated with PTFE (Polytetrafluoroethylene)-based material. Teflon is a well-known trade name associated with PTFE. U.S. EPA records also identify PTFE as a coating material used in non-stick cookware.
PTFE has a surface to which materials do not easily stick and it has a low coefficient of friction, making it suitable for non-stick cookware coatings.
Important fact: Scientifically, PTFE is the name of the material, while Teflon is a trademark/brand name. Therefore, when “Teflon” is given as an option in the examination, it is the expected answer.