monomer
synthetic rubber
polyester
none of these
✅ The correct answer is option B.
Polymer Technology MCQs
Dacron (or terylene) fibres as compared to nylon fibres have
better heat & acid resistant properties.
poorer resistance to alkalis.
poorer dyeability.
all (a), (b) and (c).
✅ The correct answer is option D.
Vulcanisation of rubber
decreases its tensile strength.
increases its ozone & oxygen reactivity.
increases its oil & solvent resistance.
converts its plasticity into elasticity.
✅ The correct answer is option D.
Plastic tubes & pipes are generally made by __________ moulding.
injection
transfer
extrusion
compression
✅ The correct answer is option C.
Thermosetting resins/polymers as compared to thermoplastic ones are
soluble in all organic solvents.
more brittle.
formed by addition polymerisation only.
easily reshaped & reused.
✅ The correct answer is option B.
Styrene which is a monomer for the production of polystyrene, is commercially produced by the
catalytic dehydrogenation of ethyl benzene.
dehydration of ethyl alcohol followed by hydrogenation.
reacting ethylene oxide with acetal-dehyde.
fermentation of starch.
✅ The correct answer is option A.
Ebonite is a/an
highly vulcanised rubber.
natural rubber.
unvulcanised raw rubber.
adhesive.
✅ The correct answer is option A.
The generic chemical name for the class of polymers which are commerically known as nylons is
polyolefins
polyamide
polyacrylate
polyurathane
✅ The correct answer is option B.
In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer ?
PTFE
Buna-S
PMMA
Polycaprolactum
✅ The correct answer is option B.
Which of the following is not a condensation polymer ?
Bakelite
Melamine polymer
Polymethylmethacrylate (PMMA)
None of these
✅ The correct answer is option C.