Question:
Which of the following processes develops cross-links in elastomer?
Which of the following processes develops cross-links in elastomer?
Show Hint
Vulcanisation adds sulfur cross-links to rubber.
Updated On: Oct 1, 2026
- galvanization
- vulcanization
- polymerization
- hydration
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Natural rubber is a soft elastomer. Its chains slide over each other easily, so it is sticky and weak.
Step 2: Detailed Explanation:
In vulcanisation, rubber is heated with sulfur at 373-415 K. Sulfur forms bridges between neighbouring chains at the double bonds. These cross-links give strength, stiffness and elastic recovery.
Galvanisation is coating iron with zinc. Polymerisation builds the chains but does not specifically add cross-links to an elastomer. Hydration is the addition of water.
Step 3: Final Answer:
Vulcanisation, option (B).
Final Answer:
Vulcanisation makes sulfur cross-links in rubber. \[ \boxed{\text{(B) }\text{Vulcanization}} \]
Natural rubber is a soft elastomer. Its chains slide over each other easily, so it is sticky and weak.
Step 2: Detailed Explanation:
In vulcanisation, rubber is heated with sulfur at 373-415 K. Sulfur forms bridges between neighbouring chains at the double bonds. These cross-links give strength, stiffness and elastic recovery.
Galvanisation is coating iron with zinc. Polymerisation builds the chains but does not specifically add cross-links to an elastomer. Hydration is the addition of water.
Step 3: Final Answer:
Vulcanisation, option (B).
Final Answer:
Vulcanisation makes sulfur cross-links in rubber. \[ \boxed{\text{(B) }\text{Vulcanization}} \]
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