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An electron donating substituent in benz...

An electron donating substituent in benzene orients the incoming electrophilic group to the meta-position.

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To determine whether the statement "An electron donating substituent in benzene orients the incoming electrophilic group to the meta-position" is true or false, we need to analyze the behavior of electron donating groups (EDGs) in electrophilic aromatic substitution reactions. ### Step-by-Step Solution: 1. **Understanding Electrophilic Aromatic Substitution (EAS)**: - In EAS, an electrophile attacks the aromatic ring, substituting one of the hydrogen atoms. The position where the electrophile attaches depends on the nature of the substituents already present on the ring. 2. **Identifying Electron Donating Groups (EDGs)**: - Electron donating groups are substituents that increase the electron density of the benzene ring. Common examples include -OH (hydroxyl), -OCH3 (methoxy), -NH2 (amino), and alkyl groups. 3. **Orientation of EDGs**: - EDGs typically direct incoming electrophiles to the ortho (adjacent) and para (opposite) positions relative to themselves. This is due to the resonance effect, where the electron density is increased at these positions, making them more reactive towards electrophiles. 4. **Meta Position Orientation**: - The meta position is not favored for electrophilic attack when an EDG is present. Instead, the meta position is generally favored by electron withdrawing groups (EWGs), which decrease electron density at the ortho and para positions. 5. **Conclusion**: - Since electron donating substituents direct electrophilic substitution to the ortho and para positions, the statement that they orient the incoming electrophilic group to the meta-position is **false**. ### Final Answer: **False** - An electron donating substituent in benzene does not orient the incoming electrophilic group to the meta-position; it directs it to the ortho and para positions.
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