Benzene is stable because of:
Correct answer: B. presence of delocalization of π electron
- A. containing single bond
- B. presence of delocalization of π electron
- C. containing sp³ hybridized carbon
- D. isolated double bonds
Explanation
Benzene's six pi electrons are delocalised over the whole ring, spreading the electron density and giving it extra stability called resonance energy. All its carbons are sp2 hybridised, not sp3, and it has no isolated double bonds, which is why it resists addition reactions.
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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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1,093 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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