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Worksheets

Synthetic fibre and Plastics

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

_________ is the first fully synthetic fibre.

a)

Acrylic

b)

Polyester

c)

Nylon

d)

Rayon

2.

What of the following is used for making stockings and parachutes?

a)

Bakelite

b)

Wool

c)

Nylon

d)

Cotton

3.

Which of the following material is a mixture of two fibres?

a)

Jute

b)

Polywool

c)

Polyester

d)

Nylon

4.

Fibres of _______ resemble that of silk and hence, it is popularly known as ‘artificial silk’.

a)

acrylic

b)

polyester

c)

rayon

d)

nylon

5.

Firefighters’ uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options.

a)

Teflon

b)

Melamine

c)

PET

d)

Polyester

6.

Identify the type of plastic that can best be used to make electrical switches.

a)

PVC

b)

Polythene

c)

PET

d)

Bakelite

7.

Modern non-stick cookware and the flat end of an electric iron has a coating of a polymer. Identify the name of the polymer.

a)

PVC

b)

Rayon

c)

Teflon

d)

Polyester

8.

Terylene is a popular form of

a)

Polyester

b)

Monomer

c)

Plastic

d)

Nylon

9.

Select the correct option from the given statements.

a)

Polymers cannot form fibres

b)

Polymers can be both natural and synthetic

c)

Polymer is a natural substance

d)

Polymer is a synthetic substance

10.

Which of the following groups contain only Synthetic Polymer?

a)

Nylon, Terylene, Wool

b)

Cotton, Polycot, Rayon

c)

PVC, Polythene, Bakelite

d)

Acrylic, Silk, Wool

11.

Pickles are stored in plastic bottles mainly because they are:

a)

non-biodegradable

b)

good insulators

c)

durable

d)

non-reactive

12.
Which of the following option is incorrect statement about rayon?
a)
It is highly absorbent and soft
b)
it is obtained from wood pulp
c)
it is mixed with cotton to make bedsheets
d)
it is a natural fibre
13.
Which is the correct statement about nylon?
a)
It is a natural fibre
b)
It is obtained from cellulose
c)
It is a strong fibre
d)
it is a mixture of polyester and cotton
14.

Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of:

a)

Polyester

b)

Nylon

c)

Rayon

d)

Cotton

15.

Nylon is obtained by

a)

Treatment of wood pulp.

b)

Mixing coal, air and water.

c)

Solidifying water.

d)

Mixing acids and bases.

16.

Which of the following is not a blended fibre?

a)

Terrycot

b)

Terrylene

c)

Polycotton

d)

Terywool

17.

The first synthetic fibre formed from a natural material wood pulp is

a)

acrylic

b)

rayon

c)

nylon

d)

polyester

18.

A fibre which is as soft as wool is

a)

rayon

b)

nylon

c)

polyester

d)

acrylic

19.

Necklace : bead :: polymer : ________.

a)

Monomer

b)

Dimer

c)

Tetramer

d)

Trimer

20.

We should not wear synthetic clothes while cooking in the kitchen or in a laboratory.

a)

True

b)

False

21.

Thermosetting Plastics

a)

Can be reshaped using heat and pressure.

b)

Are lighter plastics

c)

Can be recycled

d)

Can not be reshaped using heat and pressure

22.

It is not advisable to wear clothes made of synthetic fibre while working near fire because


.

a)

They are uncomfortable in those works

b)

They melt on heating and cause heavy burns

c)

They do not absorb moisture

d)

They are shiny and lustrous

23.

_________ is the first fully synthetic fibre.

a)

Acrylic

b)

Polyester

c)

Nylon

d)

Rayon

24.

The word polymer comes from a _______word.

a)

Latin

b)

Greek

c)

Tamil

d)

English

25.

In word polymer....poly means

a)

Many

b)

Few

c)

One

d)

None