Asked in PMC Practice Test 17 (2021) 2021Moderate

Which one of the following is a strong electrophile on which benzene electrons attack fastly?

Correct answer: C. Cl+

  • A. FeBr3
  • B. FeCl4-
  • C. Cl+
  • D. Cl-

Explanation

Electrophiles are species with a positive charge. The only element/molecule with a positive charge is Cl hence, Option C is the correct answer.

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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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