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Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution in organic chemistry?
A
SN1 reaction
B
Addition reaction
C
E2 reaction
D
E1 reaction
Verified step by step guidance
1
Understand the concept of nucleophilic substitution: In organic chemistry, nucleophilic substitution is a fundamental class of reactions where a nucleophile replaces a leaving group in a molecule.
Identify the SN1 reaction: The SN1 reaction is a type of nucleophilic substitution that occurs in two steps. First, the leaving group departs, forming a carbocation intermediate. Then, the nucleophile attacks the carbocation.
Differentiate between reaction types: Addition reactions involve adding atoms or groups to a molecule without replacing any part of it. E2 and E1 reactions are elimination reactions, where atoms or groups are removed from a molecule, forming a double bond.
Recognize the characteristics of SN1 reactions: SN1 reactions typically occur in polar protic solvents and are favored by tertiary carbocations due to their stability.
Conclude that SN1 is the correct example of nucleophilic substitution: Based on the definitions and characteristics, the SN1 reaction fits the criteria for nucleophilic substitution, unlike the other options provided.