MCAT Organic Chemistry Question 118: Answer and Explanation
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Question: 118
13. Butanoic anhydride can be produced by the reaction of butanoic acid with which of the following compounds?
- A. Butanoic acid
- B. Ethanoic acid
- C. Butanol
- D. Methanal
Correct Answer: A
Explanation:
Butanoic anhydride is an anhydride with two butane R groups. Anhydrides are produced by the reaction of two carboxylic acids with the loss of a water molecule. Therefore, butanoic anhydride would be produced by the reaction of two molecules of butanoic acid.