MCAT Organic Chemistry Question 100: Answer and Explanation
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Question: 100
10. Which of the following is considered a tautomer of the imine functional group?
- A. Cyanohydrin
- B. Hydrazone
- C. Enamine
- D. Semicarbazone
Correct Answer: C
Explanation:
All of the answer choices are nitrogen-containing functional groups, but only enamines are tautomers of imines. Imines contain a double bond between a carbon and a nitrogen; enamines contain a double bond between two carbons as well as an amine.