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Polymer Technology

Polymer Technology
Ion exchange resins are made of

Polystyrene
Sulphonated bakelite
Lucite
Teflon

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Polymer Technology
Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of

Vinyl chloride
Styrene
Vinyl acetate
Propylene

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Polymer Technology
Unbreakable crockeries are made from __________ polymers.

Polystyrene
Melamine
Polyurathane
Polystyrene

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Polymer Technology
Viscosity of a polymer solution or melt

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

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Polymer Technology
Mastication of rubber means

Improving its curing rate
A treatment to retard its deterioration due to oxidation
Its softening
Depression of its freezing point

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

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

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MORE MCQ ON Polymer Technology

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