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Polymer Technology

Polymer Technology
Density of high density polythene is about __________ gm/c.c.

0.99
0.95
1.18
1.05

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Polymer Technology
Hot drink (e.g, tea) cups are usually made of

PVC
Polystyrene
Polythene
Polypropylene

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Polymer Technology
Poly tetra flouro ethylene (PTFE) is known as

Celluloid
Bakelite
Teflon
Dacron

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Polymer Technology
Styrene which is a monomer for the production of polystyrene, is commercially produced by the

Catalytic dehydrogenation of ethyl benzene
Dehydration of ethyl alcohol followed by hydrogenation
Reacting ethylene oxide with acetal-dehyde
Fermentation of starch

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Polymer Technology
Low density polythene as compared to high density polythene is

More flexible
Chemically inert
Tougher
Harder

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Polymer Technology
Ion exchange resins are made of

Polystyrene
Teflon
Lucite
Sulphonated bakelite

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