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Polymer Technology

Polymer Technology
Which of the following is a natural polyamide fibre.

Wool
Cotton
None of these
Silk

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Polymer Technology
The physical state in which polymers exist is

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

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

None of these
Of the same monomer by elimination of small molecules of water
In a chain without the elimination of water
With the elimination of small amount of water

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Polymer Technology
Cation exchange resins used in water treatment is made from __________ resin.

Phenolic
Epoxy
Urea formaldehyde
Amino

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Polymer Technology
Thermosplastic materials

Are heavily branched molecules
None of these
Are solvent insoluble
Do not soften on application of heat

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Polymer Technology
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

Freezing point
Percent elongation
Resilience
Strength

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