Which one of the following does a benzene molecule have?
Correct answer: B. Delocalized pi-electron charge
- A. Two double bonds
- B. Delocalized pi-electron charge
- C. Three double bonds
- D. One sigma bond
Explanation
Benzene has a delocalized pi-electron system. Its alternative double bonds cause the ring to become delocalized and constitute the chemical properties of benzene.
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About Benzene and Aromatic Compounds
Benzene has a planar ring of delocalised π electrons, giving aromatic stability and equal carbon-carbon bond lengths. The topic covers resonance, electrophilic substitution reactions such as nitration, halogenation, sulphonation and Friedel-Crafts reactions, along with substituent effects and the distinction between substitution in benzene and addition in ordinary alkenes.
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