A. Lignin
B. Cellulose
C. Polyamides
D. Ethylene glycol
Polymer Technology
Polymer Technology
A. Thermoplastic
B. Melamine
C. Addition
D. None of these
A. Polyurethane
B. Phenol formaldehyde
C. Polychlorophrene
D. Styrene butadiene rubber (SBR)
A. Addition polymerisation product
B. Condensation polymerisation product
C. Thermosetting material
D. None of these
A. Its softening
B. A treatment to retard its deterioration due to oxidation
C. Improving its curing rate
D. Depression of its freezing point
A. Elastomers
B. Fibres
C. Thermoplastics
D. Thermosetting polymers
A. Ammonium alum
B. Potassium alum
C. Both A. & B.
D. Neither A. nor B.
A. Harder
B. More abrasion resistant
C. Having higher melting point
D. None of these
A. Harder
B. Stronger
C. Lighter
D. All A., B. and C.
A. Produces high density polythene
B. Uses no catalyst
C. Produces low density polythene
D. Employs very high pressure