Question

A Tick (V) the correct answer
1. Which of the following is a synthetic fibre
(a) Nylon
(b) Cotton
(c) Wool
(d) Jute
2. Which of the following is a natural polymer?
(a) Acrylic
(b) Polyester
(c) Nylon
(d) Rayon
3.Which of the following is an example of thermosetting?
(a) Bakelite
(b) Polythene
(c) Poly vinyl chloride
(d) Polystyrene
4. The artificial silk prepared from cellulose is called
(a) Polythene
(b) Polyester
(c) Rayon
(d) Nylon

B. Fill in the blanks -
1. The small units that join to make a polymers is called____.
2. Synthetic fibres do not absorb_____.
3.______plastics do not become soft on heating and cannot be reshaped.
4.______is called an artificial silk.
5._____is a kind of fibre that resembles wool.

C. Write 'T' for True or 'F' for False for the following sentences :-
1. Polymers are micro sized molecules.
2. Plastics are non bio-degradable.
3. Nylon is also called an artificial silk.
4. Men made polymers are known as synthetic polymers.
S. We must use jute clothes or paper bags instead of plastic bags.​

Answer 1

a)

1Q

1) cotton

2) polyster

3) bakelight

4) nylon

c)

1) T

2)F

3) T

4) T

Answer 2

Answer:

Explanation:

a)

1Q

1) cotton

2) polyster

3) bakelight

4) nylon

c)

1) T

2)F

3) T

4) T