Map Sapling Learning maemllan leaming bstituents on an aromatic ring can have se

Question

Map Sapling Learning maemllan leaming bstituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions ubstituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively, donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where Xis the atom directly bound to the aromatic ring. Ortho/para-directed Activation of the ring Withdrawal of electrons substitution towards substitution. through resonance. -CI -CH3 NH CH3 OCH3 COOH M NHCOCH -OH -SO3H CN Br NO COOH

Explanation / Answer

activation of ring towards substitutin: -CH3, -NHCOCH3, -Br (These are electron donating groups so they activates the benzene ring.)

withdrawl of electrons through resonance: -SO3H, -NO2 (these are electron withdrawing groups which withdraws electrons.)

ortho/para-directed substitution: -Cl, -CH3, -OH

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