Benzene also undergoes electrophilic substitution with fuming sulphuric acid for several hours. The electrophile in this reaction is:
Correct answer: B. SO3
- A. SO2
- B. SO3
- C. SO4
- D. H2SO4
Explanation
When benzene undergoes electrophilic substitution with fuming sulphuric acid (H2SO4), the electrophile involved in the reaction is SO3, which is derived from the sulphuric acid. So, option B is the appropriate answer.
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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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