Multiple Choice
Which graph best represents the energy profile of a reaction when an enzyme is present?
3. Acids and Bases
Reaction Mechanism
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Which of the following is not a type of reaction mechanism in organic chemistry?
A
Nucleophilic substitution
B
Electrophilic addition
C
Natural selection
D
Radical substitution
Verified step by step guidance1
Identify the context of the question: The problem is asking about reaction mechanisms in organic chemistry.
Understand the term 'reaction mechanism': In organic chemistry, a reaction mechanism is a step-by-step description of the process by which reactants are transformed into products.
Review the given options: Nucleophilic substitution, Electrophilic addition, Natural selection, and Radical substitution.
Clarify each term: Nucleophilic substitution involves a nucleophile replacing a leaving group. Electrophilic addition involves an electrophile adding to a double or triple bond. Radical substitution involves radicals replacing atoms or groups in a molecule.
Recognize the outlier: Natural selection is a biological concept related to evolution, not a chemical reaction mechanism.
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