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प्रश्न
Define thermoplastics with two examples of each.
उत्तर
Thermoplastic polymers are linear (slightly branched) long chain polymers, which can be repeatedly softened and hardened on heating. Hence, they can be modified again and again. Examples include polythene, polystyrene.
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संबंधित प्रश्न
Write the name of monomers used for getting the following polymers : Neoprene
Arrange the following polymers in increasing order of their intermolecular forces.
(i) Nylon 6, 6, Buna-S, Polythene.
(ii) Nylon 6, Neoprene, Polyvinyl chloride.
In which classes, the polymers are classified on the basis of molecular forces?
Define thermosetting polymers with two examples of each.
Arrange the following polymers in increasing order of their intermolecular forces:
Polyvinylchloride, Neoprene, Terylene
Which of the following are characteristics of thermosetting polymers?
(i) Heavily branched cross linked polymers.
(ii) Linear slightly branched long chain molecules.
(iii) Become infusible on moulding so cannot be reused.
(iv) Soften on heating and harden on cooling, can be reused.
Which of the following polymers are thermoplastic?
(i) Teflon
(ii) Natural rubber
(iii) Neoprene
(iv) Polystyrene
Which of the following polymers are used as fibre?
(i) Polytetrafluoroethane
(ii) Polychloroprene
(iii) Nylon
(iv) Terylene
Why are rubbers called elastomers?
Can enzyme be called a polymer?
Thermoplastic are:-
Among the following polymers, the strongest intermolecular forces of attraction are present in:
The polymer, which can be stretched and retains its original status on releasing the force is ______.
