231. Alkyd resin can not be used for making
plasticiser
paint & varnish
fibres
film forming materials
✅ The correct answer is option C.
Polymer Technology MCQs
232. Neoprene is a
monomer
synthetic rubber
polyester
none of these
✅ The correct answer is option B.
233. Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces
nylon-6
dacron
polyester
PVC
✅ The correct answer is option B.
234. The physical state in which polymers exist is
melts & rubber like state.
amorphous glassy state.
partially crystalline state.
all (a), (b) and (c).
✅ The correct answer is option D.
235. Pick out the wrong statement.
Addition polymers are generally formed by chain growth polymerisation.
Condensation polymers are generally formed by step growth polymerisation.
Teflon is formed by step growth polymerisation.
Bakelite is formed by step growth polymerisation.
✅ The correct answer is option C.
236. Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
cold SBR
butyl rubber
Bunai N
Buna S
✅ The correct answer is option B.
237. Paper like thin plastic articles can be produced by
blow moulding
vacuum thermo forming
injection moulding
none of these
✅ The correct answer is option B.
238. Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically
polymethyl methacrylate (PMMA).
Polytetraflouroethylene(PTFE).
polycarbonates.
phenolic resins.
✅ The correct answer is option A.
239. Viscosity of a polymer solution or melt
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.
240. The monomer of natural rubber is
DMT
isoprene
2 methyl-1-propene
both (b) and (c)
✅ The correct answer is option D.