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Multiple Choice
Which of the following describes the reaction shown in the diagram as a nucleophilic substitution reaction?
A
E1 reaction
B
SN1 reaction
C
E2 reaction
D
SN2 reaction
Verified step by step guidance
1
Understand the types of nucleophilic substitution reactions: SN1 and SN2. SN1 involves a two-step mechanism with a carbocation intermediate, while SN2 is a one-step mechanism with a direct displacement.
Identify the characteristics of an SN1 reaction: it typically occurs with tertiary substrates, involves a carbocation intermediate, and the rate depends only on the concentration of the substrate.
Examine the reaction diagram for any indication of a carbocation intermediate, which is a hallmark of an SN1 reaction.
Consider the substrate structure in the diagram: if it is tertiary, it is more likely to undergo an SN1 reaction due to the stability of the carbocation.
Evaluate the reaction conditions: polar protic solvents and weak nucleophiles favor SN1 reactions, while strong nucleophiles and polar aprotic solvents favor SN2 reactions.