MCAT Organic Chemistry Question 80: Answer and Explanation

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Question: 80

5. What is the product of the reaction below?

  • A. C3H7OH
  • B. C2H5COOH
  • C. C3H6CHO
  • D. CH3COOH

Correct Answer: B

Explanation:

Aldehydes are easily oxidized to the corresponding carboxylic acids by KMnO4. In choice (A), the aldehyde has been reduced to an alcohol. In choice (C), the molecule has not reacted. In choice (D), the aldehyde has been oxidized, but a –CH2– group has been removed.

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