Epoxy resin is a polymer containing two or more groups of the bellow fig. is called epoxide group or ethoxyline group. It is a _______________?

Related Mcqs:

1. Epoxy resins (i.e., epoxide polymers) ?

   A. Are made by addition polymerisation reaction only
   B. Contain an epoxy group (fig bellow) at the ends of the polymer
   C. Are cross-linked polymers only
   D. Use emulsion polymerisation methods

2. Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the _____________ fibres?

   A. Acrylic
   B. Polyester
   C. Nylon 6:6
   D. Polypropylene

3. Epoxy resin is____________________?

   A. Not used for surface coating
   B. A good abrasive
   C. An elastomer
   D. A polyester

4. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for _______________ fibres?

   A. Polythene
   B. PVC
   C. Rayon
   D. Polyvinyl acetate

5. Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used_______________?

   A. For surface coating of automobiles & air crafts
   B. For fibre making
   C. As plasticiser for PVC & nitrocellulose
   D. For film forming materials

6. In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer ?

   A. Bakelite (phenol formaldehyde)
   B. Polyester
   C. Polythene
   D. Nylon-6

7. Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?

   A. Thermoplastic
   B. Thermosetting
   C. Elastometric
   D. Brittleness

8. Poly-methyl-methacrylate, which is an acrylic resin, is also called ___________________?

   A. Thiokol
   B. Plexiglass or Lucite
   C. Dacron
   D. Teflon

9. Condensation polymerisation of formaldehyde with _____________ does not produce phenolic resin?

   A. Resorcinol
   B. Phenol
   C. Para-cresol
   D. Melamine

10. The only natural thermoplastic resin, which is a product of animal life is ____________________?

    A. Rosin
    B. Shellac
    C. Amber
    D. Copal