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  1. Which one of the following statements is not correct? Vulcanisation of rubber makes it

    2. A.

     Soft and flexible
    B.

     Strong and hard
    C.

     Chemical resistant
    D.

     Withstand higher temperatures

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    Answer : Option A

    Explanation :

    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.

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