Question

(1) Which of the following natural fibres is a plant product? A. Wool B. Rayon C. Cotton D. Silk
(2) Which of the following is a synthetic fibre ? A. Cotton B. Acrylic C. Jute D. Wool
(3) Which of the following is not a synthetic fibre ? A. Rayon B. Acrylic C. Nylon D Silk
(4) Which man-made fibre is made by the chemical reaction on wood pulp ? A. Polyester B. Nylon C. Rayon D. Acrylic
(5) Which sy etic fibres resemble wool ? A. Acrylic. B. Rayon C. Polyester D. Nylon
(6) By which name is the mixture of polyester and cotton known as ? A. Terrylene B. Polycot C. Polywool D. Terrysilk
(7) Which of the following are thermoplastics ? (i) Polythene (ii) Melamine (iii) Bakelite (iv) PVC A. (i) and (iii) B. (i) and (iv) C. (ii) and (iii) D. (ii) and (iv)
(8) Which of the following are thermosetting plastics? (i) Polythene (ii) Bakelite (ii) PVC (iv) Melamine A. (i) and (iv) B. (ii) and (iii) C. (i) and (iii) D. (ii) and (iv)
(9) Which material is used to make fire resistant clothes for firefighters ? A. Polythene B. PVC C. Melamine D. Bakelite
(10) Which of the following plastics is used for making electrical switches? A. Bakelite B. Polythene C. PVC D. Melamine
(11) Which synthetic fibre is used as wool ? A. Acrylic B. Rayon C. Nylon D. Terrylene
(12) Which of the following is biodegradable ? A. Plastic B. Cotton cloth C. Paper D. Wood 2. Fill in the blanks : [1 mark each)​

Answer 1

Answer:

Rayon is a synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. Viscose can mean: A viscous solution of cellulose.

Answer 2

Answer:

1 answer =A

2 answer =D

3answer=C

4answer=B

5answer=B

6answer=A

7answer=C

8answer=D

9answer=A

10answer=D

11answer=C

12 answer =B