MCAT Organic Chemistry Question 96: Answer and Explanation

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Test Information

Question: 96

6. Which of the hydrogens in the following molecule is the most acidic?

  • A. A
  • B. B
  • C. C
  • D. D

Correct Answer: B

Explanation:

This hydrogen is on the carbon between two carbonyls, which means that it is particularly acidic. This is due to both the inductive effects of the two oxygen atoms in the carbonyls and the resonance stabilization of the anion between the carbonyl groups.

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