A. Thermoplastic
B. Thermosetting
C. Either A. or B.
D. Fibres only
Related Mcqs:
- 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 - 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 - 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 - Branched chair polymers as compared to linear polymers have _________________?
A. Higher melting point
B. Higher tensile strength
C. Lower density
D. None of these - Branched chain polymers compared to linear polymers have higher ____________________?
A. Density
B. Tensile strength
C. Melting point
D. Degree of irregularity in atomic packing - Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?
A. Water impermeable cellophane
B. Polythene
C. Cellulose acetate
D. Teflon - Maximum consumption of polymers is in___________________?
A. Electrical insulation
B. Toys making
C. Coating and films
D. Packaging - Which of the following polymers does not belong to the class of Polyacrylate polymer ?
A. PMMA
B. Polyacrylonitrile
C. Poly Ethyl acrylate
D. None of these - Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?
A. Glycerol
B. Nitro cellulose
C. Camphor
D. None of these - The physical state in which polymers exist is___________________?
A. Melts & rubber like state
B. Amorphous glassy state
C. Partially crystalline state
D. All A., B. and C.
