Which property of Benzene may be directly attributed to the stability associated with its delocalized pi-electrons?
Correct answer: D. It tends to undergo electrophilic substitution rather addition reaction
- A. It has a low boiling point
- B. Its enthalpy change formation (∆H) is positive
- C. It is susceptible to attack by nucleophilic reagent
- D. It tends to undergo electrophilic substitution rather addition reaction
Explanation
The stability associated with the delocalized pi-electron system in benzene makes it less prone to addition reactions and more prone to electrophilic substitution reactions. The electrons are already distributed over the entire ring, making it less reactive towards adding new atoms or groups. Options A, B, and C are incorrect because they do not consider the unique properties of benzene resulting from its stabilized pi-electron system.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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