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My LMS Subjects Practice LMS questions, Week 3

Single choice

Recognising how resonance contribtutes to the arrangement of charge around a ring helps to understand the reactivity of a substituted benzene.Consider the resonance contributors of the following compoundAccording to resonance, is the ring: activated or deactivated to electrophilic substitution. And which site/s are the most susceptible to substitution?

Options
A.a. Deactivated - ortho sites are the most active
B.b. Activated - ortho and para sites are the most active
C.c. Activated - meta sites are the most active
D.d. Deactivated - ortho and para sites are the most active
E.e. Deactivated - meta sites are the most active
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The question asks us to evaluate resonance effects on a substituted benzene ring and determine both the overall reactivity (activated or deactivated) toward electrophilic substitution and which positions are most susceptible. Option a: Deactivated - ortho sites are the most active. This is inconsistent with common directing effects: when a ring is deactivated, it is usually due to electron-withdrawing groups, and the ortho/para positions are not ......Login to view full explanation

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