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Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.
Statement II : 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.
  • a)
    Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I
  • b)
    Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I
  • c)
    Statement I is correct but Statement II is incorrect
  • d)
    Statement II is correct but Statement I is incorrect
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in ac...
Acid catalysed dehydration of alcohols proceed via carbocation intermediates. Hence, greater the stability of carbocation, greater the reactivity of corresponding alcohols.
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Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in ac...


Statement I and Statement II Analysis:

Statement I: 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.
Statement II: 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.

Explanation:

Reactivity in Dehydration:
- 3-methyl-2-butanol has a more substituted carbon adjacent to the hydroxyl group compared to 2-butanol. This makes the carbocation formation more stable in 3-methyl-2-butanol.
- The stability of the carbocation intermediate affects the rate of reaction, with more stable carbocations leading to higher reactivity.

Carbocation Stability:
- In 3-methyl-2-butanol, the formation of a tertiary carbocation is possible due to the presence of a methyl group on the adjacent carbon, increasing the stability of the carbocation.
- On the other hand, in 2-butanol, the carbocation formed would be secondary, which is less stable compared to a tertiary carbocation.

Conclusion:
- Both Statement I and Statement II are correct.
- Statement II is the correct explanation of Statement I because the more stable carbocation formed in 3-methyl-2-butanol leads to its higher reactivity in the dehydration reaction compared to 2-butanol.

Therefore, the correct answer is option A.
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Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.Statement II : 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.a)Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement Ib)Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement Ic)Statement I is correct but Statement II is incorrectd)Statement II is correct but Statement I is incorrectCorrect answer is option 'A'. Can you explain this answer?
Question Description
Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.Statement II : 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.a)Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement Ib)Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement Ic)Statement I is correct but Statement II is incorrectd)Statement II is correct but Statement I is incorrectCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.Statement II : 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.a)Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement Ib)Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement Ic)Statement I is correct but Statement II is incorrectd)Statement II is correct but Statement I is incorrectCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement I : 3-methyl-2-butanol is more reactive than 2-butanol in acid catalysed dehydration to alkene.Statement II : 3-methyl-2-butanol forms more stable carbocation than 2-butanol during dehydration reaction.a)Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement Ib)Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement Ic)Statement I is correct but Statement II is incorrectd)Statement II is correct but Statement I is incorrectCorrect answer is option 'A'. Can you explain this answer?.
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