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POLYMER TECHNOLOGY

Polymer Technology
Thermosetting resins/polymers as compared to thermoplastic ones are

More brittle
Easily reshaped & reused
Soluble in all organic solvents
Formed by addition polymerisation only

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Polymer Technology
Thermosetting polymers as compared to thermoplastic polymers

Have linear structure
Are formed by addition polymerisation
Have three dimensional structure
None of these

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Polymer Technology
Which of the following is the lowest cost plastic commercially available?

Polythene
PVC
Teflon
Bakelite

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Polymer Technology
Polystyrene is a light, transparent, thermoplastic material used for making

Packaging bags
Non-sticking utensils
Electrical insulation
Toys and combs

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Polymer Technology
The physical state in which polymers exist is

Amorphous glassy state
All of these
Melts & rubber like state
Partially crystalline state

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