Question

2. Which of the following is used for making lightweight sail?
(b) Polyester
(d) Acrylic
(a) Nylon
(c) Rayon
3. Which of the following is a thermosetting plastic?
(b) Teflon
(d) Nylon
F.
(a) PVC
(c) Bakelite
(b) polyester
(d) nylon
* The artificial silk prepared from cellulose is called :
(a) polythene
(c) rayon
5. Which of the following is also used as a substitute for glass?
(a) Polystyrene
(c) PVC
(d) Teflon
FILL IN THE BLANKS
(b) Perspex​

Answer 1

Answer:

polyester

Explanation:

it is better as it is lighter