Epoxy resin is a polymer containing two or more groups called epoxide group or e

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Epoxy resin is a polymer containing two or more groups called epoxide group or ethoxyline group. It is a
Options
A. polyamide & an elastomer.
B. good adhesive.
C. surface coating agent.
D. both (b) and (c).

Correct Answer

both (b) and (c).

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2. Catalyst used in the production of high density polythene by low pressure Ziegler process is
Options
A. aluminium triethyl activated with TiCl₄
B. platinum
C. molybdenum
D. Nickel

4. Epoxy resins (i.e., epoxide polymers)
Options
A. are made by addition polymerisation reaction only.
B. contain an epoxy group ( ) at the ends of the polymer.
C. are cross-linked polymers only.
D. use emulsion polymerisation methods.

5. All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic
Options
A. filaments
B. pipes
C. buckets
D. tubings

7. Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its
Options
A. tensile strength
B. chemical resistance
C. flexibility
D. all (a), (b) & (c)

10. Polymerisation process in which two or more monomers of chemically different nature take part is called
Options
A. copolymerisation
B. addition polymerisation
C. chain polymerisation
D. none of these

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