Question

(a) rayon
3. This synthetic fibre is used for making woollen
clothes.
(b) acrylic
(c) nylon
(d) polyester
4. This is a thermosetting plastic.
(a) polyethene (b) PVC
(c) polystyrene (d) bakelite​

Answer 1

3. correct answer is (b) acrylic

4. correct answer is (b)pvc

Answer 2

3- (b) because Acrylic is considered as artificial wool also it resembles like wool with all properties of wool.

4- (d) bakelite is thermosetting plastic as we can't heat and change the shape of bakelite.