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General Organic Chemistry III: Reaction Intermediates
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Reaction energy profiles, kinetic vs thermodynamic control
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A reaction occurs in two steps through one reactive intermediate. Its energy profile between reactant and product shows
A
one maximum and no minimum
B
two maxima and two minima
C
one maximum and two minima
D
two maxima and one minimum
Answer: D
Each step has its own transition state (a maximum), so there are two maxima. The intermediate lies in the valley between them, giving one minimum.
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