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Directions : In this question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.

Assertion : With HI, anisole gives iodobenzene and methyl alcohol.
Reason : Iodide ions combine with smaller groups to avoid steric hindrance.
  • a)
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • b)
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • c)
    If the Assertion is correct but Reason is incorrect.
  • d)
    If both the Assertion and Reason are incorrect.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Directions : In this question, A statement of Assertion (A) is followe...
Assertion: With HI, anisole gives iodobenzene and methyl alcohol.

Reason: Iodide ions combine with smaller groups to avoid steric hindrance.

Explanation:
To understand the given assertion and reason, let's first discuss the reaction between anisole (methoxybenzene) and HI (hydrogen iodide).

The reaction between anisole and HI proceeds as follows:

Anisole + HI → Iodobenzene + Methanol

Now, let's examine the given assertion and reason individually:

Assertion: With HI, anisole gives iodobenzene and methyl alcohol.

This assertion is correct. When anisole reacts with HI, it undergoes a nucleophilic substitution reaction where the methoxy group (-OCH3) of anisole is replaced by an iodine atom (-I), resulting in the formation of iodobenzene. Simultaneously, a methyl alcohol molecule is formed as a byproduct.

Reason: Iodide ions combine with smaller groups to avoid steric hindrance.

This reason is incorrect. Steric hindrance refers to the repulsion between atoms or groups in a molecule that affects the reaction rate or outcome. In the given reaction, the size of the group (-OCH3) is not the determining factor for the substitution of iodide ions. The reaction occurs due to the nucleophilic nature of iodide ions, which readily attack the electron-deficient carbon of the methoxy group, resulting in the substitution. Steric hindrance is not a significant factor in this reaction.

Conclusion:
Based on the above analysis, we can conclude that the assertion is correct, but the reason is incorrect. Therefore, the correct answer is option 'c' - "If the Assertion is correct but Reason is incorrect."
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Directions : In this question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion : With HI, anisole gives iodobenzene and methyl alcohol.Reason : Iodide ions combine with smaller groups to avoid steric hindrance.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'D'. Can you explain this answer?
Question Description
Directions : In this question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion : With HI, anisole gives iodobenzene and methyl alcohol.Reason : Iodide ions combine with smaller groups to avoid steric hindrance.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions : In this question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion : With HI, anisole gives iodobenzene and methyl alcohol.Reason : Iodide ions combine with smaller groups to avoid steric hindrance.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In this question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion : With HI, anisole gives iodobenzene and methyl alcohol.Reason : Iodide ions combine with smaller groups to avoid steric hindrance.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'D'. Can you explain this answer?.
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