Question

The polymer used in making gaskets and non-stick coating utensils is

• A. Polyvinyl chloride
• B. Polystyrene
• C. Polytetrafluoroethylene
• D. Polythene

Hint:

Teflon = PTFE. Think of the "Fluorine" as a shield that makes everything slide right off.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Non-stick coatings and high-performance gaskets require a material that is chemically inert, has a very low coefficient of friction, and can withstand high temperatures.
Step 2: Key Formula or Approach:
Identify the polymer commonly known as Teflon. Its chemical name is Polytetrafluoroethylene (PTFE).
Step 3: Detailed Explanation:
Polytetrafluoroethylene (PTFE) is prepared by the polymerization of tetrafluoroethene ($CF_2=CF_2$). Due to the strength of the C-F bonds, it is highly resistant to heat and chemicals. This makes it ideal for:
Non-stick cookware: Its "slippery" nature prevents food from sticking.
Gaskets: It maintains a seal without reacting with the chemicals or gases it contains.

Step 4: Final Answer:
The correct polymer is Polytetrafluoroethylene.