Aromatic HydrocarbonshardMCQ MULTIPLE

Which of the following statements correctly describe the benzyne intermediate formed during the elimAromatic Hydrocarbons Chemistry Question

Question

Which of the following statements correctly describe the benzyne intermediate formed during the elimination-addition mechanism of nucleophilic aromatic substitution?

Answer: A,B,D

💡 Solution & Explanation

Benzyne is generated from unactivated aryl halides using strong bases ($NaNH_2$). It possesses a "triple bond" formed by the sideways overlap of two adjacent $sp^2$ orbitals. This overlap is weak and highly strained, making benzyne very reactive. However, the original $6\pi$ electron aromatic system remains intact and perpendicular to this new bond (C is false). Nucleophilic attack can occur at either carbon of the triple bond, leading to direct or cine-substitution.

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