Question 4
Which is a thermosetting plastic?

(a) Melamine
(b) Polythene
(c) PVC
(d) Nylon

Q. Question 4
Which is a thermosetting plastic?

(a) Melamine
(b) Polythene
(c) PVC
(d) Nylon

Q. Read the given statements about synthetic fibres and
plastics carefully.

I. Polycot is a mixture of two types of fibres, polyester and cotton.

II. Melamine is a thermosetting plastic used for making kitchenware.

III. Uniforms of firemen have coating of nylon to make them flame resistant.

IV. Polythene and PVC are the examples of thermosetting plastics.

Which of these statements are corect?

Q. Study the given flowchart carefully. $K,L,PandQ$ plastics are
$KLPQ$
(A)Polystyrene,Bakelite,Teflon,PVC
(B)Polythene,Polystyrene,Bakelite,PVC
(C)PVC,Polythene,Polystyrene,Bakelite
(D)PVC,Teflon,Melamine,Bakelite

Q. polythene, polystyrene, nylon, PVC, rayon, terene, acrylic, formica, polycot, melamine
The list of materials mentioned above can be classified as
(a) synthetic fibres and plastics.
(b) polyester fibres and objects made of glass.
(c) man-made materials and plastics.
(d) synthetic fibres and thermoplastics.

Q.

Choose the thermoplastics and thermosetting plastics from the following :

Melamine, Polythene, Bakelite, Polyvinyl chloride