Electrophilic Substitution Reaction MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 22, 2025

19 Score: 0 Attempted: 0/19 Subscribe
1. : What does the Aromatic bromination catalyzed by the Lewis acid thalium acetate give?





2. : What does an activating substituent group activate?





3. : Which of the following has the highest activation of the benzene ring?





4. : What acts as catalyst in the nitration of benzene?





5. : What is the rate determining step in electrophilic substitution reaction?





6. : What is the necessary condition for desulphonation?





7. : What does a deactivating substituent group direct?





8. : In Cannizzaro reaction, two molecules of aldehydes react to produce which of the following?





9. : What acts as electrophile in halogenation?





10. : HBr reacts fastest with which of the following?





11. : Which of the following is not a product of the reaction of benzene with CH₃Cl and AlCl₃?





12. : What is the product of Friedel-Crafts Acylation reactions?





13. : What is the reaction in which benzene reacts with alkyl halide in the presence of a Lewis acid to produce alkylbenzene?





14. : Which of the following is a meta-directing group?





15. : Which of the following is the most stable carbonium ion?





16. : What is the method to convert benzene into n-propyl benzene?





17. : Which of the following is an ortho-para directing group?





18. : Fuming sulphuric acid is a solution of how much % SO₃ in conc. H₂SO₄?





19. : Which of the following compounds can be most readily sulphonated?





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