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Which of the following statements is correct?

1. During vulcanization, sulfur linkages formed between polymer chains enhance the strength and hardness of rubber.
2. The double bonds in natural rubber exhibit a trans-configuration.
3. Buna-S is synthesized as a copolymer of styrene and butadiene.
4. Natural rubber is a polymer of isoprene with a 1,4-addition structure.

Correct answer: During vulcanization, sulfur linkages formed between polymer chains enhance the strength and hardness of rubber.

Solution

During vulcanization, sulfur linkages formed between polymer chains enhance the strength and hardness of rubber because these cross-links restrict the movement of the polymer chains, resulting in a more rigid and durable material.

Related JEE Advanced Chemistry questions

• What is ebonite classified as?
• What is the range of sulfur content typically utilized in the vulcanization process of rubber?
• Identify the option that does not represent a condensation polymer.
• Identify the option that does not represent an addition polymer.
• Which of these fibers is classified as a polyamide?
• Identify the polymer that includes 1,3-butadiene as one of its building blocks.

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