Cellulose content in bamboo fibre is about ______________ percent?
Cellulose content in bamboo fibre is about ______________ percent?
A. 10
B. 20
C. 50
D. 85
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Polypropylene is preferred to polythene, because the former is ____________________?
Polypropylene is preferred to polythene, because the former is ____________________?A. Non-inflammable
B. Harder
C. Stronger
D. Both B. & C.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?
In case of dry sning of polymers, the polymer solution in a volatile solvent is forced through the snerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry sning is used for _______________ fibres?A. Polythene
B. PVC
C. Rayon
D. Polyvinyl acetateNitrile rubber is produced by the polymerisation of_________________?
Nitrile rubber is produced by the polymerisation of_________________?A. Acrylonitrile & butadiene
B. Acrylonitrile & styrene
C. Isobutylene & isoprene
D. None of theseA copolymer of vinyl and vinylidene chloride is called_____________________?
A copolymer of vinyl and vinylidene chloride is called_____________________?A. Treylene
B. Orlon
C. Saran
D. DacronContact lenses for eyes are made of Perspex, which is nothing but_______________?
Contact lenses for eyes are made of Perspex, which is nothing but_______________?A. poly-methyl-methacrylate
B. Polystyrene
C. Unsaturated polyester
D. PolypropyleneWhich of the following is not a polymer of two monomers ?
Which of the following is not a polymer of two monomers ?A. Teflon
B. Bakelite
C. SBR
D. None of these