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Question
Chemistry
What is true regarding vulcanization of rubber?
Q. What is true regarding vulcanization of rubber?
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NTA Abhyas
NTA Abhyas 2022
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A
Rubber molecules are joined through
S
−
S
linkage at the ends
B
Rubber molecules are linked through
S
−
S
linkage at the various parts of polymer backbone
C
Vulcanization makes rubber perfectly crystalline
D
Vulcanization converts rubber into a thermosetting polymer
Solution:
Vulcanization is a process of heating natural rubber with sulphur. This brings about linking of polymer chains at various points of backbone through
S
−
S
linkage. This provides strength to the rubber.