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Polymer Technology

Polymer Technology
Alkyd resin is a/an

Polyolefin
Polyester
Addition polymer
Polyamide

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Polymer Technology
Dacron is a/an

Unsaturated polyester
Polyamide
Polyester
Inorganic polymer

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Polymer Technology
Condensation polymerisation of __________ produces bakelite.

Urea & formaldehyde
Propylene
Phenol & acetaldehyde
Phenol & formaldehyde

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Polymer Technology
Collapsible tubes for tooth paste are produced by __________ extrusion.

Impact
Indirect
Direct
None of these

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Polymer Technology
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?

Ammonium alum
Potassium alum
Neither A nor B
Both A & B

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Polymer Technology
Thermosplastic materials

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

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