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Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution reaction?
A
Diels-Alder reaction
B
SN1 reaction
C
E2 reaction
D
E1 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: SN1 and SN2. SN1 reactions are unimolecular nucleophilic substitutions, where the rate-determining step involves the formation of a carbocation intermediate. SN2 reactions are bimolecular nucleophilic substitutions, where the nucleophile attacks the substrate in a single concerted step.
Examine the given options: Diels-Alder reaction, SN1 reaction, E2 reaction, and E1 reaction. The Diels-Alder reaction is a cycloaddition reaction, not a nucleophilic substitution. E2 and E1 reactions are elimination reactions, not substitution reactions.
Focus on the SN1 reaction. It is a classic example of a nucleophilic substitution reaction, where the nucleophile replaces the leaving group after the formation of a carbocation intermediate.
Conclude that among the given options, the SN1 reaction is the correct example of a nucleophilic substitution reaction.