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Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution reaction?
A
E1 reaction
B
Hydrogenation reaction
C
E2 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. The two main types are SN1 and SN2 reactions.
Recognize the characteristics of an SN1 reaction. It is a two-step process where the leaving group departs first, forming a carbocation intermediate, followed by the nucleophile attacking the carbocation.
Compare the given options: E1, Hydrogenation, E2, and SN1. E1 and E2 are elimination reactions, not substitution reactions. Hydrogenation involves the addition of hydrogen, not substitution.
Identify that SN1 is the correct example of a nucleophilic substitution reaction from the given options.
Conclude that SN1 reactions are characterized by their unimolecular rate-determining step, where the rate depends only on the concentration of the substrate, not the nucleophile.