_____________ is a thermosetting plastic ?
_____________ is a thermosetting plastic ?
A. PVC
B. Polythene
C. Bakelite
D. Polystyrene
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_____________ tubes are good substitute for human blood vessels on heart by-pass operation?
_____________ tubes are good substitute for human blood vessels on heart by-pass operation?A. PVC
B. Polythene
C. Teflon/Dacron
D. PolystyrenePolyvinyl alcohol is used as a___________________?
Polyvinyl alcohol is used as a___________________?A. Cation/anion exchanger
B. Water soluble adhesive
C. Textile fibre
D. Non-sticky coating on frying pansWhich of the following is stretched into fibers ?
Which of the following is stretched into fibers ?A. Saturated polyester
B. Unsaturated polyester
C. Isoprene
D. BakeliteThe monomer for the production of neoprene rubber is_________________?
The monomer for the production of neoprene rubber is_________________?A. Acetylene
B. Chloroprene
C. Isoprene
D. None of thesePolymers are_________________?
Polymers are_________________?A. Micro-molecules
B. Macromolecules
C. Sub-micromolecules
D. None of theseThe generic chemical name for the class of polymers which are commercially known as nylons is______________________?
The generic chemical name for the class of polymers which are commercially known as nylons is______________________?A. Polyolefins
B. Polyamide
C. Polyacrylate
D. Polyurethane