Polymers  MCQs

MCQs of Polymers

Showing 81 to 90 out of 168 Questions
6 7 8 9 10 11
81.
In cis-1, 4-polyisoprene, double bond between which two carbon atoms is reactive ?
(a) C1 and C2
(b) C2 and C3
(c) C3 and C4
(d) All of the above
Answer:

Option (b)

82.
During vulcanization process, _____ % sulphur is used in making rubber for tyres.
(a) 5
(b) 30
(c) 85
(d) 100
Answer:

Option (a)

83.
During vulcanization process 30% sulphur is used in making rubber for _____ .
(a) tyres
(b) battery-cases
(c) conveyer belt
(d) oil seal
Answer:

Option (b)

84.
Which monomer (s) can be used for the preparation of synthetic rubber ?
(a) Buta-1, 3-diene
(b) Derivatives of Buta -1, 3-diene
(c) Buta-1, 3-diene and similar unsaturated compound.
(d) All of the above
Answer:

Option (d)

85.
On polymerization of what does neoprene obtained ?
(a) F2C = CF2
(b) Cl2C = C·Cl2
(c) CH2 = C·Cl – CH = CH2
(d) CH2 = CHCl
Answer:

Option (c)

86.
Which rubber has superior resistance towards lubricant oil and organic solvents ?
(a) Neoprene
(b) Buna-N
(c) Buna-S
(d) Natural rubber
Answer:

Option (a)

87.
Which application of neoprene is not true ?
(a) In printing rollers
(b) In hose pipes
(c) In making footware
(d) In conveyor belts
Answer:

Option (c)

88.
Which of the following having heavy polymer ?
(a) Paint
(b) House hold material
(c) Adhesive
(d) All of these
Answer:

Option (b)

89.
Which catalyst is used during addition co-polymerization reaction between monomer units to prepare nitrile rubber ?
(a) Ziegler-Natta
(b) Peroxide
(c) Alkyl Lithium
(d) Pyridine
Answer:

Option (b)

90.
Which of the following is a semi synthetic polymer ?
(a) Cellulose nitrate
(b) Rayon
(c) Vulcanised rubber
(d) All of these
Answer:

Option (d)

Showing 81 to 90 out of 168 Questions
6 7 8 9 10 11