MCAT Organic Chemistry Question 91: Answer and Explanation

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Question: 91

1. What is the product of the reaction below?

  • A.
  • B.
  • C.
  • D.

Correct Answer: D

Explanation:

One mole of aldehyde reacts with one mole of alcohol via a nucleophilic addition reaction to form a product called a hemiacetal. In a hemiacetal, an –OH group, an –OR group, a hydrogen atom, and an –R group are attached to the same carbon atom.

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