Question

Which one of the following polymers is prepared by addition polymerisation?

• A. Teflon
• B. Nylon-6,6
• C. Novolac
• D. Dacron

Hint:

Addition polymers form from monomers without loss of small molecules, while condensation polymers release water or similar by-products.

Answer 1

The Correct Option is A

Step 1: Check the monomers
Teflon has one monomer with a double bond. The other three polymers need two different monomers with reactive groups.

Step 2: Check by-products
Nylon-6,6, Novolac and Dacron all release water on forming.

Step 3: Conclusion
So Teflon is the addition polymer.

Final Answer:
Option A is correct. \[ \boxed{\text{(A) }\text{Teflon}} \]