9. At what position, and on what ring, would you expect the following substances to undergo electrophilic substitution? H "oa "bra "oko" a) CH3 b) Br c)

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**Question 9:**

At what position, and on what ring, would you expect the following substances to undergo electrophilic substitution?

**a)** This compound has a structure with two benzene rings connected by an ether linkage (an oxygen atom), with one of the rings having a methyl group (CH₃) attached to it.

**b)** This compound consists of two benzene rings connected by an amine linkage (a nitrogen atom with hydrogen). A bromine atom (Br) is attached to one of the benzene rings.

**c)** This compound features two benzene rings connected by a ketone linkage (a carbonyl group), with a chlorine atom (Cl) attached to one of the benzene rings.

*Graphical Explanation:*

- **a)** The ether linkage (O) is connecting the two benzene rings, and a methyl group is directly attached to one of the rings potentially activating it for substitution.
  
- **b)** The amine linkage (NH) connects two benzene rings, while a bromine atom is attached to one of the rings, affecting its reactivity in electrophilic substitution.
  
- **c)** The presence of the carbonyl group (C=O) serves as a linkage between two benzene rings, with a chlorine atom connected to one of the rings, influencing its chemical behavior.

Consider how the substituents and linkages influence electron density on each benzene ring for electrophilic substitution predictions.
Transcribed Image Text:**Question 9:** At what position, and on what ring, would you expect the following substances to undergo electrophilic substitution? **a)** This compound has a structure with two benzene rings connected by an ether linkage (an oxygen atom), with one of the rings having a methyl group (CH₃) attached to it. **b)** This compound consists of two benzene rings connected by an amine linkage (a nitrogen atom with hydrogen). A bromine atom (Br) is attached to one of the benzene rings. **c)** This compound features two benzene rings connected by a ketone linkage (a carbonyl group), with a chlorine atom (Cl) attached to one of the benzene rings. *Graphical Explanation:* - **a)** The ether linkage (O) is connecting the two benzene rings, and a methyl group is directly attached to one of the rings potentially activating it for substitution. - **b)** The amine linkage (NH) connects two benzene rings, while a bromine atom is attached to one of the rings, affecting its reactivity in electrophilic substitution. - **c)** The presence of the carbonyl group (C=O) serves as a linkage between two benzene rings, with a chlorine atom connected to one of the rings, influencing its chemical behavior. Consider how the substituents and linkages influence electron density on each benzene ring for electrophilic substitution predictions.
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