Organic Chemistry MCAT Practice Exam 2025 - Free MCAT Practice Questions and Study Guide

In the oxidation of alcohols, the primary bond that is broken involves the carbon-hydrogen bonds. During this oxidation process, alcohols typically lose hydrogen atoms and gain oxygen atoms, which transforms them into either aldehydes, ketones, or carboxylic acids, depending on the type of alcohol being oxidized.

In a typical oxidation reaction, the hydroxyl (-OH) group of the alcohol is converted into a carbonyl (C=O) group, which involves breaking a carbon-hydrogen bond. The loss of hydrogen is crucial because it contributes to the increase in the oxidation state of the carbon atom connected to the hydroxyl group.

The other types of bonds mentioned are either less relevant or not involved in the primary mechanism of alcohol oxidation. For instance, breaking carbon-carbon bonds is typically associated with different types of reactions, such as the cleavage of longer carbon chains rather than the functional group transformation seen in alcohol oxidation. Likewise, hydrogen-hydrogen bonds do not play a significant role in this specific chemical transformation.

In summary, the understanding of bond breaking during oxidation reactions helps in recognizing the overall processes that lead to the formation of various oxidized products from alcohols, highlighting the significance of carbon-hydrogen bond breaking in this