All GRE Subject Test: Chemistry Resources
Example Questions
Example Question #2 : Intermediates
Which of the following transformations includes an enolate intermediate?
Possible Answers:
I and III
I and II
III only
II and III
I, II, and III
Correct answer:
II and III
Explanation:
Enolates are formed by an oxygen anion bound to an alkene carbon. Reactions II and III include an enolate intermediate, as shown in the mechanisms below, whereas reaction I is a simple SN2 reaction and does not include an enolate intermediate. Enolates are highlighted in red.
Gregory
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Pennsylvania State University-Main Campus, Bachelor of Science, Chemical Engineering. Carnegie Mellon University, Doctor of P...
Yongmao
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Nankai University, Bachelor of Science, Chemistry. Washington University in St Louis, Doctor of Philosophy, Organic Chemistry.
All GRE Subject Test: Chemistry Resources
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