A. Fibrous
B. Leathery
C. Rubbery
D. Hard
Related Mcqs:
- Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800 ?
A. 50000
B. 51600
C. 49200
D. 50800 - 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 - A copolymer of vinyl and vinylidene chloride is called_____________________?
A. Treylene
B. Orlon
C. Saran
D. Dacron - The monomer of poly vinyl chloride (PVC) is__________________?
A. Chloroethane
B. Ethylene dichloride
C. Ethyl chloride
D. Chloroform - Poly Vinyl chloride (PVC) is a ________________ material?
A. Thermoplastic
B. Thermosetting
C. Fibrous
D. Chemically active - SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?
A. 1: 3
B. 3 : 1
C. 1 : 2
D. 2 : 1 - 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 - 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 - Vinyl flooring is done using _____________ sheets?
A. Polypropylene
B. PVC
C. Polythene
D. Polyvinyl acetate - Synthetic polymer produced by using terephthalic acid and ethylene glycol is _________________?
A. Terylene
B. Nylon-66
C. PVC
D. Polystyrene
