Nucleophilic Substitution Reaction MCQs

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

1. : Which of the following is the functional group in alkyl halide?
(A) Hydroxyl group
(B) Inert gas
(C) Halogen atom
(D) All of these

2. : What is the halide ion?
(A) Strong base
(B) Weak acid
(C) Weak base
(D) Strong acid

3. : Which of the following is the atom that defines the structure of a family of organic compounds and their properties?
(A) Functional group
(B) Homologous structure
(C) Resonating structure
(D) Nucleophile

4. : Which of the following is the correct statement?
(A) All of these
(B) No intermediate is always involved in the SN2 mechanism
(C) SN2 reactions are a one-step reaction
(D) SN2 reaction always follows the second-order kinetics

5. : When the nucleophile OR⁻ attacks RX, which of the following will be the resultant product?
(A) R – OH
(B) R: CN
(C) ROR
(D) RNHR

6. : Which of the following is the reactivity order of alkyl halides in SN2?
7. : Which of the following is the reaction of alcohol with SOCl2?
(A) SN1
(B) SN2
(C) SNi
(D) SNAr

8. : The drastic condition required for substitution in haloarenes is ___________
(A) All of these
(B) High pressure
(C) Strong concentrated reagent
(D) High temperature

9. : How will we arrange the following in decreasing order of leaving group ability in nucleophilic substitution reaction?
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