A. Micro-molecules
B. Macromolecules
C. Sub-micromolecules
D. None of these
Related Mcqs:
- Branched chair polymers as compared to linear polymers have _________________?
A. Higher melting point
B. Higher tensile strength
C. Lower density
D. None of these - 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 - 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 - Identify the group in which all the polymers mentioned can be used to make fibres ?
A. Butadiene copolymers, Polyamides, Urea-formaldehyde
B. Cellulose derivatives, Polyisoprene, Polyethylene
C. Cellulose derivatives, Polyamides, Polyurethane
D. Polypropylene, Poly vinyl chloride, Silicon - Maximum consumption of polymers is in___________________?
A. Electrical insulation
B. Toys making
C. Coating and films
D. Packaging - Thermosetting polymers as compared to thermoplastic polymers_____________________?
A. Are formed by addition polymerisation
B. Have three dimensional structure
C. Have linear structure
D. None of these - The generic chemical name for the class of polymers which are commercially known as nylons is______________________?
A. Polyolefins
B. Polyamide
C. Polyacrylate
D. Polyurethane - 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.