Question

Match the followings:

Column A Column B

1. Nylon (a) non stick coating

2. PET

3. Rayon

4. Thermosetting plastics

5. Teflon

(b) Electric switches

(c) Pa rachutes

(d) Polyester

(e) Artificial silk

The odd one out.

1. PVC, melamine, polythene, natural ru bber

2. Wood, paper, woolen clothes, aluminum can

3. Silk, jute, Nylon, wool

4. Polycot, Polywool, Terrycot ,Acrylic

State whether the given statements are true or false.

1. A nylon thread is actually weaker than a steel wire.

2. Rayon was the first fully synthetic fibre to be made.

3. Teflon is a special plastic on which oil and water

sticks.

Tick the correct option:

Which of the following is a source of rayon?

(a) Wool (b) PET

(c) Wood pulp (d) Silk

Polycot is obtained by mixing

(a)Nylon and wool (b) polyester and wool

(c) nylon and cotton (d) polyester and cotton

Which is a thermosetting plastic?

(a) Melamine (b) Polythene

(c)PVC (d) Nylon

The material similar to silk in appearance is

(a) Nylon (b)Rayon

(c)Polyester (d)Terylene

Which of the following groups contain all synthetic substances?

(a) Nylon, Terylene, Wool (b) Cotton, Polycot, Rayon

(c) PVC, Polythene, Bakelite (d) Acrylic, Silk, Wool

Select the correct word from the following list and fill in the blanks.

Microwave ovens, Poor, Natural, Glucose, Nylon

1. Cellulose is made up of a large n um ber of ________ uni t s .

2. _______ fibre was prepared from coal, water and air.

3. Bakelite is a ______ conductor of heat and electricity.

4. In the heat cooks the food but does not affect the plastic vessel.

5. In biodegrada.blema terial gets decomposed through __________ process. ​

Answer 1

1. Nylon = Paracutes

2. Pet = non sticking coating

3. Rayon = artificial silk

4. thermosetting plastic = electric switches

5. Teflon = polyester

2.

1) Natural rubber

2) Aluminum can

3) Nylon

4) Acrylic

3. False

True

False