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Polymer Technology

Polymer Technology
Orion is

All of these
Obtained by polymerising vinyl cyanide
A copolymer
A condensation polymer

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Polymer Technology
Orlan fibre which is used as a wool sub stitute is

Polymethylmethacrylate (PMMA)
Polyacrylonitrile
A natural polymeric fibre
An amorphous polymer

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Polymer Technology
Liners of bags are usually made of

Polythene
Polyesters
Polypropylene
PVC

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Polymer Technology
Low pressure Zeigler process of polythene manufacture

Produces very low density polythene
Employs a pressure of 30 kgf/cm²
Does not use any catalyst for polymerisation
Achieves an yield of 95-98% based on ethylene

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Polymer Technology
Which of the following is generally not drawn into fibre?

Polyacrylonitrile
Polyamide
Unsaturated polyesters
Saturated polyesters

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Polymer Technology
Polythene is a/an

Addition polymerisation product
Thermosetting material
None of these
Condensation polymerisation product

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