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.Management Sciences
Category: Polymer Technology
The conversion of caprolactam in the above case is about ____________ percent?
0
A. 25
B. 50
C. 70
D. 90
Ebonite is a/an___________________?
A. Highly vulcanised rubber
B. Natural rubber
C. Unvulcanised raw rubber
D. Adhesive
______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?
A. Epoxy
B. Amino
C. Alkyd
D. Phenolic
Polyvinyl acetate is never used for making_________________?
A. Moulded articles
B. Fibres
C. Adhesives
D. All A., B. & C.
Nylon-6 is manufactured from _______________?
A. Caprolactam
B. Adipic acid and Hexamethylenediamine
C. Maleic anhydride and Hexamethylenediamine
D. Sebacic acid and Hexamethylenediamine
Phenol formaldehyde is produced by condensation polymerisation. It is also known as_________________?
A. Teflon
B. Bakelite
C. Polyester
D. Nylon-66
Polystyrene is a ____________ plastic at room temperature?
A. Ductile
B. Brittle
C. Malleable
D. None of these
Which of the following polymers has the tendency of decomposing before melting ?
A. Polystyrene
B. Nylon
C. PVC
D. None of these
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