Interpretation: The substitution of given following compounds most and least activated should be explained.
Concept Introduction:
Electrophile: It is positively charged species which seeks for negative charge and hence accepts pair of electrons from negatively charged species (Nucleophiles) which results in the formation of
Electrophilic
Given that the halogens are very electronegative they reason inductive withdrawal (pulling out of electrons from the carbon atom of benzene).
Given that the halogens have non-bonding electrons they can give electron density during pi bonding (resonance donation).
Electrophilic substitution
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