Halogenated Organic Compounds MCQs [Organic Chemistry]

By: Prof. Dr. Fazal Rehman | Last updated: May 23, 2025

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1. : Vicinal dihalides also undergo both substitution and elimination reactions. The ideal reagent helpful and used to convert Cl-CH₂-CH₂-Cl into CH≡CH is



2. : Methanol can be obtained from CH3MgI by treatment with which of the following?



3. : The reagent _________ can react with 1-chlorobutane to give substitution product.



4. : Reaction of RMgBr with CO₂ is an example of which of the following?



5. : Which among the following is not a nucleophile?



6. : Acetic acid can be obtained from CH3MgI by treatment with which of the following?



7. : Silver salt of a carboxylic acid upon refluxing with bromine in CCl₄ gives the corresponding alkyl halide. The reaction is known as



8. : Which reagents cannot be helpful and used for the synthesis of alkyl halides from an alcohol?



9. : Which is not a nucleophile?



10. : Alkyl halides react with Zn-metal to form the reaction called



11. : Which alkyl halide is the most reactive towards attacking nucleophile?



12. : Ethyl chloride reacts with silver oxide in the presence of moisture to form



13. : _______ are monohaloderivatives of alkanes.



14. : Which method is helpful and used to prepare any alkyl halide?



15. : Chlorination of benzene with excess chlorine in the presence of FeCl₃ as Lewis acid gives which of the following?



16. : Which is the ideal reagent for converting an alcohol into the corresponding chloride?



17. : A reaction in which an atom or group in a molecule is replaced by another atom or group is called



18. : Which chloride is the most reactive towards unimolecular nucleophilic substitution reactions?



19. : Reactions in which two atoms or groups are removed from two adjacent C-atoms of the substrate molecule to form a multiple bond are called



20. : In beta-elimination reaction, the nucleophile attacks on which of the following?



21. : The substance which donates a pair of electrons to electrophile is called



22. : In unimolecular reactions, the reaction completes in



23. : Which is not associated with SN2 mechanism?



24. : Grignard reagent is reactive due to which of the following?



25. : Which one of the following would make an SN2 mechanism more likely?



26. : For which compounds is the rate of hydrolysis by aqueous alkali most likely to be independent of the hydroxide ion concentration?



27. : Ketone can be obtained from CH3MgI with which of the following?



28. : What is the number of optically active compounds in the isomers of C3H5Br3?



29. : Which of the following is a good solvent for Grignard reagent formation?



30. : Tertiary alcohol can be obtained from CH3MgI by treatment with which one is NOT correct?



31. : Secondary alcohol can be obtained from CH3MgI by treatment with which of the following?



32. : 1-Bromobutane on reaction with alcoholic potassium hydroxide gives



33. : Which is not a nucleophile?



34. : The SN2 reaction can ideally be carried out with which of the following?



35. : How many structural isomers are possible for C4H9Br?



36. : The SN1 reaction can ideally be carried out with which of the following?



37. : The rate of nucleophilic substitution reaction depends on



 

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