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Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution reaction?
A
Diels-Alder reaction
B
E2 reaction
C
E1 reaction
D
SN1 reaction
Verified step by step guidance
1
Understand the concept of nucleophilic substitution reactions. These reactions involve the replacement of a leaving group by a nucleophile. They are characterized by the attack of a nucleophile on an electrophilic center, typically a carbon atom bonded to a leaving group.
Identify the types of nucleophilic substitution reactions. The two main types are SN1 and SN2 reactions. SN1 reactions are unimolecular nucleophilic substitution reactions, where the rate-determining step involves the formation of a carbocation intermediate.
Examine the given options: Diels-Alder reaction, E2 reaction, E1 reaction, and SN1 reaction. The Diels-Alder reaction is a cycloaddition reaction, not a nucleophilic substitution. E2 and E1 are elimination reactions, which involve the removal of atoms or groups from a molecule, rather than substitution.
Focus on the SN1 reaction. In an SN1 reaction, the nucleophile attacks the carbocation formed after the leaving group departs, resulting in the substitution of the leaving group with the nucleophile.
Conclude that the SN1 reaction is the correct example of a nucleophilic substitution reaction among the given options, as it involves the substitution of a leaving group by a nucleophile.