decreases with increase in molecular weight.
decreases with increase in temperature.
increases with increase in temperature.
does not vary with temperature rise.
✅ The correct answer is option C.
Polymer Technology MCQs
The monomer of natural rubber is
DMT
isoprene
2 methyl-1-propene
both (b) and (c)
✅ The correct answer is option D.
Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
chloroethane
chlorophrene
isoprene
none of these
✅ The correct answer is option B.
Which of the following polymers has the tendency of decomposing before melting ?
Polystyrene
Nylon
PVC
None of these
✅ The correct answer is option C.
__________ is a natural fibre.
Cellulose
Dacron
Nylon-6
none of these
✅ The correct answer is option A.
Viscose rayon is
cellulose nitrate
regenerated cellulose nitrate
regenerated cellulose acetate
none of these
✅ The correct answer is option D.
Polymerisation of poly functional monomers produces polymers having
good machanical strength
low viscosity
low melting point
none of these
✅ The correct answer is option A.
Which of the following is stretched into fibres ?
Saturated polyester
Unsaturated polyester
Isoprene
Bakelite
✅ The correct answer is option A.
The starting material used for the manufacture of caprolactum is
ethyl benzene
cyclohexane
ethylene glycol
DMT
✅ The correct answer is option B.
Polyesters are manufactured by the polycondensation reaction of
dibasic acid with dihydric alcohol.
a single monomer.
carboxylic acid with ethylene.
inorganic acid with ethylene glycol.
✅ The correct answer is option A.