_______________________ is not a condensation polymer ?

Related Mcqs:

1. 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...

2. 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...

3. 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...

4. Which of the following is not a condensation polymer ?

   A. Bakelite B. Melamine polymer C. Poly-methyl-methacrylate (PMMA) D. None of these...

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

   A. Polyamide & an elastomer B. Good adhesive C. Surface coating agent D. Both B. and C....

6. 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...

7. Viscosity of a polymer solution or melt _________________?

   A. Decreases with increase in molecular weight B. Decreases with increase in temperature C. Increases with increase in temperature D. Does not vary with temperature rise...

8. In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher ___________________?

   A. Densities B. Melting point C. Tensile strength D. Hardness, rigidity & brittleness...

9. Properties of a polymer is affected by the____________________?

   A. Chain length B. Intermolecular forces C. Both A. and B. D. None of these...

10. Which of the following low molecular weight (<104), soft & waxy polymer is used in „chewing gum‟ ?

    A. Cellulose acetate B. Polyvinyl acetate C. Thiokol D. PVC...