MCAT Organic Chemistry Question 86: Answer and Explanation
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Question: 86
11. Which of the following describe(s) pyridinium chlorochromate (PCC)?
I. An oxidant that can form aldehydes from primary alcohols
II. An oxidant that can form carboxylic acids from primary alcohols
III. An oxidant that can completely oxidize secondary alcohols to ketones
- A. I only
- B. I and II only
- C. I and III only
- D. I, II, and III
Correct Answer: C
Explanation:
PCC is a mild anhydrous oxidant that can oxidize primary alcohols to aldehydes, and secondary alcohols to ketones. It is not strong enough to oxidize alcohols or aldehydes to carboxylic acids.