AIIMS 2019 Chemistry Reactions of Phenols Assertion Reason Question
Phenol reacts with CH₃I in presence of NaOH to form methoxybenzene as shown below: In the presence of NaOH, phenol forms phenoxide ion which is a better nucleophile than phenol. So, both assertion and reason are true and reason is the correct explanation of assertion.
Correct Answer
Detailed Explanation
Option A is correct because both the assertion and reason provided in the question are true: phenol reacts with CH₃I in the presence of NaOH to form methoxybenzene, and the formation of the phenoxide ion increases nucleophilicity due to the negative charge, making it a better nucleophile than neutral phenol. This enhanced nucleophilicity facilitates the nucleophilic substitution reaction with CH₃I. Other options are not applicable as they do not provide alternative assertions or reasons relevant to the question. Understanding this reaction highlights the importance of nucleophiles in organic reactions and the role of base-induced deprotonation in enhancing reactivity.
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