Which is better material for making PVC pipes a thermosetting plastic or a thermoplastic?
Give two examples of polymers that belong to the class of formaldehyde resins.
Mention two uses of Nylon-6, 6.
State how rayon is different from silk?
What are polyamides?
Name one synthetic polymer containing - CN group. Give its formula.
Classify the following polymers as chain growth and step growth polymers:(i) Buna-S(ii) Nylon-6,6(iii) Terylene (iv) PVC
Define copolymerisation? Give one example.
What structural changes are produced during vulcanization of rubber?
