Polymers  MCQs

MCQs of Polymers

Showing 61 to 70 out of 168 Questions
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61.
In the preparation of what Nylon-6 and Nylon-66 differ ?
(a) Carpet
(b) Ropes
(c) Tyres
(d) All of the above
Answer:

Option (a)

62.
Which molecules are eliminated during the preparation of terylene (dacron) ?
(a) Water
(b) Methanol
(c) Ammonia
(d) Hydrogen chloride
Answer:

Option (b)

63.
What type of alcohol is used in the preparation of dacron ?
(a) Monohydric
(b) Dihydric
(c) Trihydric
(d) Polyhydric
Answer:

Option (b)

64.
Which catalyst is used in the preparation of terylene ?
(a) Acid
(b) Ziegler - Natta
(c) Peroxide
(d) Base
Answer:

Option (d)

65.
What is produced when Novolac is heated with excess of formaldehyde at higher temperature ?
(a) Latex
(b) Dacron
(c) Bakelite
(d) Melamine
Answer:

Option (c)

66.
Mention synthetic polymer which belong to phenol - formaldehyde group.
(a) Bakelite
(b) Melamine
(c) Nylon
(d) Terylene
Answer:

Option (a)

67.
Which property is not seen in bakelite ?
(a) Fuse on heating.
(b) Good conductor of electricity.
(c) Soft, brittle and not scratch resistant.
(d) All of the above
Answer:

Option (d)

68.
Write a name of polymer which is used for making electric plug, switches and fuse.
(a) Melamine
(b) Bakelite
(c) Nylon-6
(d) Teflon
Answer:

Option (b)

69.
Appliances of which polymer do not crack or break of striking or dropping ?
(a) Melamine
(b) Bakelite
(c) Vulcanized rubber
(d) Teflon
Answer:

Option (a)

70.
During the polymerization reaction of innumerable molecules of isoprene monomers _____ and _____ breaks and bond between C2 = C3 is formed.
(a) C1 = C2
(b) C3 = C4
(c) C2 = C3
(d) Both (A) and (B)
Answer:

Option (d)

Showing 61 to 70 out of 168 Questions
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