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Question: Answered & Verified by Expert


Reason : Alkyl aryl ethers on reaction with halogen acid always form aryl halide due to formation of highly stable carbocation.
ChemistryAlcohols Phenols and EthersAIIMSAIIMS 2018 (27 May)
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
2385 Upvotes Verified Answer
The correct answer is: If both assertion and reason are false.
In case of alkyl aryl ethers, the products are always phenol and alkyl halide and never an aryl halide and alcohol. This is due to the fact that $\mathrm{O}-\mathrm{C}_6 \mathrm{H}_5$ bond has partial double bond and is stronger than $\mathrm{O}-\mathrm{R}$ bond. Therefore, halide ion exclusively breaks the $\mathrm{O}-R$ bond forming alkyl halide and phenol.

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