1.
Polyurethane cannot be used for making____________________?

2.
Which of the following is an inorganic polymer ?

3.
Epoxy resin is a polymer containing two or more groups of the bellow fig. is called epoxide group or ethoxyline group. It is a _______________?

4.
Which of the following has the weakest intermolecular forces ?

5.
Transistor parts and refrigerator components are normally made of_____________________?

6.
Silicone resins, which are highly water repellent and has good heat resistance cannot be used___________________?

7.
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?

8.
Cation exchange resins used in water treatment is made from _____________ resin?

9.
Celluloid is__________________?

10.
Tyres are made by___________________?