Questions :

1.Name the plastic, which moulded once and cannot be softening by heating.
(a)Thermoplastics
(b)Thermosetting
(c)Synthetic plastics
(d)None of these

2.Name the plastic which is used for manufacturing toys, combs and container.
(a)Thermoplastics
(b)Thermosetting
(c)Synthetic plastics
(d)None of these

3.Name the plastic which is used for making switch, floor and tiles.
(a)Thermoplastics
(b)Thermosetting
(c)Synthetic plastics
(d)None of these

4.Name the material which gets decomposes through natural process.
(a)Biodegradable
(b)Non – biodegradable
(c)Both of these
(d)None of these

5.Name the material which is not decomposes through natural process.
(a)Biodegradable
(b)Non – biodegradable
(c)Artificial material
(d)None of these

6.Name the synthetic material which is used in making dress material, utensils, bottles.
(a)Polyster
(b)Nylon
(c)Rayon
(d)None of these

7.Name the synthetic fibre which is obtained by chemical treatment of wool pulp.
(a)Rayon
(b)Nylon
(c)Polyster
(d)Acrylic

8.Name the synthetic fibre which is prepared from coal, water and air.
(a)Nylon
(b)Rayon
(c)Polyster
(d)None of these

9.Vegetable peel is an example of __________
(a)Non – Biodegradable
(b)Biodegradable
(c)Both of these
(d)None of these

10.Aluminium can is an example of __________
(a)Non – biodegradable
(b)Biodegradable
(c)Both of these
(d)None of these