its cross-linked structure.
its linear chain structure.
the presence of chlorine atoms in its monomer.
the absence of chlorine atoms in its monomer.
✅ The correct answer is option C.
Polymer Technology MCQs
Thermoplastic resins usually
remain hard as long as they are hot.
can not be reclaimed from waste.
permanent setting resins.
less brittle than thermosetting resins.
✅ The correct answer is option D.
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.
epoxy
phenol formaldehyde
urea formaldehyde
melamine formaldehyde
✅ The correct answer is option C.
Condensation polymerisation of __________ produces bakelite.
propylene
phenol & formaldehyde
phenol & acetaldehyde
urea & formaldehyde
✅ The correct answer is option B.
Which of the following is a natural polyamide fibre.
Wool
Silk
Cotton
None of these
✅ The correct answer is option A.
Styrene butadiene rubber (SBR) is
a natural rubber.
another name of silicone rubber.
a synthetic polymer.
a synthetic monomer.
✅ The correct answer is option C.
Nylon-6 is a
polyamide
thermosetting resin
polyester
none of these
✅ The correct answer is option A.
Polystyrene is a __________ plastic at room temperature.
ductile
brittle
malleable
none of these
✅ The correct answer is option B.
Polyurathane can not be used to make
automobile cushion
thermal insulation in refrigerator
coating and adhesive
fibre reinforced plastic (FRP)
✅ The correct answer is option D.
The only natural thermoplastic resin, which is a product of animal life is
rosin
shellac
amber
copal
✅ The correct answer is option B.