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Polymer Technology

Polymer Technology
Starting material for the production of butadiene in India is

Naphthalene
Phthalic anhydride
Ethyl alcohol
Benzol

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Polymer Technology
Bristles of tooth brushes are made of

PVC
Nylon-66
Nylon-6
Polystyrene

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Polymer Technology
Epoxy resin is

An elastomer
A good abrasive
Not used for surface coating
A polyester

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

Direct
Impact
Indirect
None of these

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Polymer Technology
Viscosity of a polymer solution or melt

Does not vary with temperature rise
Increases with increase in temperature
Decreases with increase in temperature
Decreases with increase in molecular weight

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Polymer Technology
In condensation polymerisation as compared to addition polymerisation

The monomers are unsaturated compounds
No co-product is lost
Generally only one monomer is involved
The monomers contain two functional groups

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