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Which one of the following statement is not true?              [2008]
  • a)
    In vulcanization the formation of sulphurbridges between different chains makerubber harder and stronger.
  • b)
    Natural rubber has the trans -configurationat every double bond
  • c)
    Buna-S is a copolymer of butadiene andstyrene
  • d)
    Natural rubber is a 1, 4 - polymer of isoprene
Correct answer is option 'B'. Can you explain this answer?
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Which one of the following statement is not true? [2008]a)In vul...
All statements except (b) are correct
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Which one of the following statement is not true? [2008]a)In vul...
Natural rubber has cis configuration and not trans at every double bond that's y op B.
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Which one of the following statement is not true? [2008]a)In vul...

Explanation:

Natural rubber has the trans-configuration at every double bond:
Natural rubber is actually a cis-1,4-polymer of isoprene, not a trans-configuration. The natural rubber polymer is made up of repeating isoprene units that are joined together in a cis-configuration at the 1 and 4 positions.

In vulcanization the formation of sulphur bridges between different chains make rubber harder and stronger:
Vulcanization is a process in which sulfur bridges are formed between different polymer chains, leading to improved mechanical properties such as hardness and strength in rubber.

Buna-S is a copolymer of butadiene and styrene:
Buna-S is indeed a copolymer of butadiene and styrene, where the presence of styrene units in the polymer chain enhances properties such as abrasion resistance and heat resistance.

Natural rubber is a 1,4-polymer of isoprene:
Natural rubber is indeed a 1,4-polymer of isoprene, with the repeating isoprene units joined together in a 1,4 configuration. This structure gives natural rubber its unique properties such as elasticity and flexibility.

Therefore, the statement that is not true is: Natural rubber has the trans-configuration at every double bond.
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Which one of the following statement is not true? [2008]a)In vulcanization the formation of sulphurbridges between different chains makerubber harder and stronger.b)Natural rubber has the trans -configurationat every double bondc)Buna-S is a copolymer of butadiene andstyrened)Natural rubber is a 1, 4 - polymer of isopreneCorrect answer is option 'B'. Can you explain this answer?
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Which one of the following statement is not true? [2008]a)In vulcanization the formation of sulphurbridges between different chains makerubber harder and stronger.b)Natural rubber has the trans -configurationat every double bondc)Buna-S is a copolymer of butadiene andstyrened)Natural rubber is a 1, 4 - polymer of isopreneCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which one of the following statement is not true? [2008]a)In vulcanization the formation of sulphurbridges between different chains makerubber harder and stronger.b)Natural rubber has the trans -configurationat every double bondc)Buna-S is a copolymer of butadiene andstyrened)Natural rubber is a 1, 4 - polymer of isopreneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statement is not true? [2008]a)In vulcanization the formation of sulphurbridges between different chains makerubber harder and stronger.b)Natural rubber has the trans -configurationat every double bondc)Buna-S is a copolymer of butadiene andstyrened)Natural rubber is a 1, 4 - polymer of isopreneCorrect answer is option 'B'. Can you explain this answer?.
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