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(i) Tensile strength of vulcanised rubber is almost ten times more than raw rubber.
(ii) Elasticity of raw rubber is very high.
Choose the correct option.
- a)Both (i) & (ii) are true
- b)(i) is false (ii) is true
- c)(i) is true (ii) is false
- d)Both (i) & (ii) are false
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
(i) Tensile strength of vulcanised rubber is almost ten times more tha...
Natural rubber is soft and sticky and after vulcanisation its strength increases due to cross linked formed between different monomer units.
Vulcanisation of rubber creates disulfide bonds between chains, so it limits degree of freedom. The result is that chain tighten more quickly for a given strain, thereby increasing elastic force constant and making rubber harder and less extensible.
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Community Answer
(i) Tensile strength of vulcanised rubber is almost ten times more tha...
Explanation:
First, let's understand the statements given:
(i) Tensile strength of vulcanised rubber is almost ten times more than raw rubber:
- Vulcanized rubber is a process where raw rubber is treated with sulfur to improve its properties.
- Tensile strength refers to the ability of a material to withstand stretching without breaking.
- When rubber is vulcanized, it undergoes a chemical reaction that increases its strength significantly. This makes vulcanized rubber much stronger than raw rubber.
(ii) Elasticity of raw rubber is very high:
- Elasticity refers to the ability of a material to return to its original shape after being stretched or deformed.
- Raw rubber has a high degree of elasticity, which is one of the reasons it is commonly used in applications where flexibility is required.
Analysis:
- Both statements (i) and (ii) are true based on the properties of raw and vulcanized rubber.
- The tensile strength of vulcanized rubber is indeed significantly higher than that of raw rubber, making it more suitable for applications where strength is important.
- Raw rubber is known for its high elasticity, which allows it to be stretched and deformed without losing its original shape.
Therefore, the correct option is Both (i) & (ii) are true (a).
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(i) Tensile strength of vulcanised rubber is almost ten times more than raw rubber.(ii) Elasticity of raw rubber is very high.Choose the correct option.a)Both (i) & (ii) are trueb)(i) is false (ii) is truec)(i) is true (ii) is falsed)Both (i) & (ii) are falseCorrect answer is option 'A'. Can you explain this answer?
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