Plastic is used for making a large variety of articles of daily use
and these articles are very attractive. But it is advised to avoid
the use of plastic as far as possible. Why?
. Plastic articles are available in all possible shapes and sizes. Can
you tell why?
Terrycot is made by mixing two types of fibres. Write the names
of the fibres.
A synthetic fiber which looks like silk is obtained by chemical
treatment of wood pulp. It is, therefore, known as artificial silk.
What is its common name?
The material which is commonly used for making kitchen
containers is
(a) PVC (c) Teflon
(b) Acrylic (d) PET
Which of the following groups contain all synthetic substances?
(a) Nylon, Terylene, Wool (c) PVC, Polythene, Bakelite
(b) Cotton, Polycot, Rayon (d) Acrylic, Silk, Woo
Which of the following represents the correct match for items in
Column A with those in Column B.
Column A Column B
I. Nylon (i) Thermoplastic
II. PVC (ii) Thermosetting plastic
III. Bakelite (iii) Fibre
(a) I-(ii), II-(iii), III-(i) (c) I-(ii), II-(i), III-(iii)
(b) I-(iii), II-(i), III-(ii) (d) I-(iii), II-(ii), III-(i)
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