41. Among cellulose, poly ( vinyl chloride ), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is
A
Nylon
B
Poly ( vinyl chloride )
C
Cellulose
D
Natural Rubber
Answer :
Natural Rubber
42. The plastic household crockery is prepared by using
A
melamine and tetrafluoroethane
B
malonic acid and hexamethyleneamine
C
melamine and vinyl acetate
D
melamine and formaldehyde
Answer :
melamine and formaldehyde
43. Which factor imparts the crystalline nature to a polymer like nylon?
A
Strong intermolecular forces like hydrogen bonding between chains.
B
van der Waals' forces between the polymeric chains.
C
Close packing of the chains due to ionic bonding between the chains.
D
Three-dimensional network of chains.
Answer :
Strong intermolecular forces like hydrogen bonding between chains.
44. Polymer which has amide linkage is
A
nylon-6, 6
B
terylene
C
teflon
D
bakelite
Answer :
nylon-6, 6
45. Which of the following sets contains only condensation polymers?
A
Polyethylene, polypropylene, terylene
B
Polyethylene, $$PVC,$$ acrilan
C
Buna-$$S,$$ nylon, terylene
D
Bakelite, $$PVC,$$ polyethylene
Answer :
Buna-$$S,$$ nylon, terylene
47. Ebonite is a
A
natural rubber
B
synthetic rubber
C
highly vulcanized rubber
D
polypropene
Answer :
highly vulcanized rubber
48. Cellulose is a polymer of
A
glucose
B
fructose
C
ribose
D
sucrose
Answer :
glucose
50. Which of the following polymers does not have vinylic monomer units?
A
Acrilan
B
Nylon
C
Polystyrene
D
Neoprene
Answer :
Nylon
