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Standard XII
Chemistry
Rubber
The monomers ...
Question
The monomers of Buna-S rubber are:
A
isoprene and butadiene
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B
butadiene and phenol
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C
styrene and butadiene
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D
vinyl chloride and sulphur
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Solution
The correct option is
D
styrene and butadiene
The monomers of Buna-S rubber are styrene and butadiene.
Styrene is ethyl benzene
C
6
H
5
−
C
H
=
C
H
2
.
Butadiene is
C
H
2
=
C
H
−
C
H
=
C
H
2
Buna S is also called styrene butadiene rubber. It is used in making inner tubes for tyres, motors, bubble gums, etc.
Hence, option C is correct.
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