Which one of the following is a powerful electrophile used to attack the electrons of the benzene ring?
Correct answer: C. Cl+
- A. FeCl2
- B. FeCl4-
- C. Cl+
- D. Cl2
Explanation
Cl+ is a powerful electrophile and is capable of attacking the electrons of the benzene ring in electrophilic aromatic substitution reactions. Cl+ is a chlorine atom that has lost one electron, resulting in a positive charge (cationic form). This positive charge makes it electron-deficient and highly reactive. In electrophilic aromatic substitution, Cl+ attacks the electron-rich benzene ring, leading to the substitution of a hydrogen atom with a chlorine atom, resulting in the formation of chlorobenzene.
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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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