Decreasing order of reactivity towards electrophilie substitution for the following compounds is
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Electron-donating groups increase the reactivity of benzene rings towards electrophilic substitution
- a > d > e > b > c
- e > d > a > b > c
- d > a > e > c > b
- c > b > a > d > e
The Correct Option is B
Solution and Explanation
• Reactivity is influenced by the electron density on the benzene ring:
.
• Dimethylamine (\(NMe_2\)) and methoxy \((OCH_3)\) are strong electron-donating groups, en hancing reactivity.
• Alkyl groups (CH3) show moderate activating effects, while electron-withdrawing groups like trifluoromethyl (CF3) reduce reactivity.
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