81. Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
epoxy resin
polyamide
alkyd resin
phenolic resin
✅ The correct answer is option C.
Polymer Technology MCQs
82. Which of the following is a polymer of hexamethylene diamine and adipic acid ?
Nylon-6
Nylon-66
Nylon-6, 10
Epoxy resin
✅ The correct answer is option B.
83. Plasticisers are added to synthetic plastics to
impart flexibility.
improve workability during fabrication.
develop new improved properties not present in the original resin.
all (a), (b) and (c).
✅ The correct answer is option D.
84. __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
Epoxy
Amino
Alkyd
Phenolic
✅ The correct answer is option B.
85. Epoxy resins (i.e., epoxide polymers)
are made by addition polymerisation reaction only.
contain an epoxy group ( ) at the ends of the polymer.
are cross-linked polymers only.
use emulsion polymerisation methods.
✅ The correct answer is option B.
86. Epoxy resin is a polymer containing two or more groups called epoxide group or ethoxyline group. It is a
polyamide & an elastomer.
good adhesive.
surface coating agent.
both (b) and (c).
✅ The correct answer is option D.
87. Molecular weights of plastics ranges from
1000 to 5000
5000 to 1000
20000 to 25000
109 to l011
✅ The correct answer is option C.
88. Which of the following polymers is used for making a non stick coating on frying pans ?
Bakelite
Teflon
Perspex
PVC
✅ The correct answer is option B.
89. Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?
Water impermeable cellophane
Polythene
Cellulose acetate
Teflon
✅ The correct answer is option B.
90. Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.
nylon
polyacrylonitrile
polypropylene
polyester
✅ The correct answer is option B.