Q1032
Which one of the following statements is not correct? Vulcanisation of rubber makes it
A.
Soft and flexible
AnswerB.
Strong and hard
C.
Chemical resistant
D.
Withstand higher temperatures
Answer: Option A
Solution
Answer: Option A
Solution:
In order to give more strength and more elasticity, natural rubber is heated with sulphur or sulphur compounds at 150°C temperature. Vulcanized rubber has good tensile strength. The working temperature of vulcanized rubber is enhanced up to 100°C. It has good resistance to organic solvents.