Question

Answer the following questions

1. 'Avoid plastics as far as possible'. comment on this
advice*

2. give examples to show that plastics are non-corrosive in nature*

3. should the handles and bristles of a toothbrush be made of the same material? explain your answer*.

Multiple choice questions

1. the material similar to silk in appearance is

A. Nylon
B. Polyester
C. Rayon
D. Terylene

2. which of the following is not a common property of plastics?

A. Non-reactive
B. Durably
C. Light in weight
D. Good conductor of electricity

3. which of the following groups contains all synthetic substances?

A. Nylon, terylene, wool
B. PVC, polythene, Bakelite
C. Cotton, polycot, rayon
D. Acrylic, Silk, wool

​

Answer 1

Answer:

1. Plastic is very harmful in nature they de- compose in hundred thousands millions.

It spread many types of disease bacteria and etc.

Some Plastic are not very harmful in nature.

2. Plastic are non corrosive in nature. They donot react even if they come in contact with strong. chemicals. They are use to store all types of food as it don't react to material stored in it.

3. No they don't made off same material as the handle of tooth brush who be very hard and strong while the bristles are soft and flexible.

Explanation:

mcq:-

1. c. Rayon.

2.a. non reactive.

3. b. pvc, polythene and bakelite