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Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution in organic chemistry?
A
E2 reaction
B
Hydrogenation
C
E1 reaction
D
SN1 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 types of nucleophilic substitution reactions: The two main types are SN1 and SN2 reactions. SN1 reactions involve a two-step mechanism with a carbocation intermediate, while SN2 reactions involve a one-step mechanism where the nucleophile attacks the substrate directly.
Examine the given options: E2 and E1 reactions are elimination reactions, not substitution reactions. Hydrogenation involves the addition of hydrogen, which is not a substitution process.
Focus on the SN1 reaction: The SN1 reaction is characterized by the formation of a carbocation intermediate, followed by the nucleophile attacking the positively charged carbon atom.
Conclude that the SN1 reaction is the correct example of nucleophilic substitution among the given options, as it involves the replacement of a leaving group by a nucleophile.