dibasic acid with dihydric alcohol.
a single monomer.
carboxylic acid with ethylene.
inorganic acid with ethylene glycol.
✅ The correct answer is option A.
Chemical Engineering MCQs
The starting material used for the manufacture of caprolactum is
ethyl benzene
cyclohexane
ethylene glycol
DMT
✅ The correct answer is option B.
Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.
polyurathane
polysulphone
polycarbonate
polyester
✅ The correct answer is option C.
Which of the following additives are added to plastics to make it impervious to X-rays ?
Asbestos
Barium salt
Carborundum
Phthalic acid
✅ The correct answer is option B.
Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces
nylon-6
dacron
polyester
PVC
✅ The correct answer is option B.
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
teflon
bakelite
polyester
nylon-66
✅ The correct answer is option B.
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.
Styrene butadiene rubber is commercially manufactured by
bulk polymerisation
suspension polymerisation
solution polymerisation
emulsion polymerisation
✅ The correct answer is option D.
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.
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
terylene
polybutadiene
PVC
polypropylene
✅ The correct answer is option A.