PMMA
Polyacrylonitrile
Polyethyl acrylate
None of these
✅ The correct answer is option D.
Chemical Engineering MCQs
Which of the following has the weakest intermolecular forces ?
Polyisoprene
Nylon-66
Polystyrene
Bakelite
✅ The correct answer is option A.
Plastic tubes & pipes are generally made by __________ moulding.
injection
transfer
extrusion
compression
✅ The correct answer is option C.
Epoxy resin is
not used for surface coating.
a good abrasive.
an elastomer.
a polyester.
✅ The correct answer is option B.
Cation exchange resins used in water treatment is made from __________ resin.
urea formaldehyde
epoxy
amino
phenolic
✅ The correct answer is option A.
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
teflon
bakelite
SBR
PVC
✅ The correct answer is option D.
Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten
saturated polyester
polyurathane
polystyrene
either (b) or (c)
✅ The correct answer is option D.
Ebonite is a/an
highly vulcanised rubber.
natural rubber.
unvulcanised raw rubber.
adhesive.
✅ The correct answer is option A.
Vulcanisation of rubber does not increase its
elasticity
plasticity
ductility
none of these
✅ The correct answer is option B.
Contact lenses for eyes are made of perspex, which is nothing but
polymethylmethacrylate
polystyrene
unsaturated polyester
polypropylene
✅ The correct answer is option A.