A. Starch
B. Cellulose
C. Proteins
D. Nucleic acids
0
Buna-S is a _______________ material?
0
_______________ practically possess no elasticity?
A. Fibrous
B. Plastic
C. Resinous
D. Rubbery
0
Low pressure Zeigler process of polythene manufacture____________________?
A. Vulcanite or ebonite
B. Spandex fibre
C. Polysulphide rubber
D. Epoxy resin
0
Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?
A. Employs a pressure of 30 kgf/cm2
B. Achieves an yield of 95-98% based on ethylene
C. Produces very low density polythene
D. Does not use any catalyst for polymerisation
0
Thermoplastic resins usually____________________?
A. Thermoplastic
B. Thermosetting
C. Elastometric
D. Brittleness
0
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?
A. Remain hard as long as they are hot
B. Cannot be reclaimed from waste
C. Permanent setting resins
D. Less brittle than thermosetting resins
0
Main constituent of cotton fiber is __________________?
A. Epoxy
B. Phenol formaldehyde
C. Urea formaldehyde
D. Melamine formaldehyde
0
Glyptal used in the manufacture of paints & lacquers is a _____________ polymer?
A. Lignin
B. Cellulose
C. Starch
D. Gelatine
0
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?
A. Polyamide
B. Polystyrene
C. Polyester
D. Polyacrylonitrile
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