Which chemical reaction is effective in removing skunk and decomposition odors?

Oxidation is indeed the correct choice for removing skunk and decomposition odors. This process involves a chemical reaction in which substances react with oxygen. In the context of odor removal, oxidation can break down the specific compounds that cause these strong odors, such as thiols in skunk spray and various organic compounds released during decomposition.

When these aromatic compounds undergo oxidation, their structure changes, leading to the formation of less odorous or non-odorous substances. This makes oxidation particularly effective in environments where unpleasant smells from organic sources—like skunk spray or decaying matter—are present.

Other processes like reduction and neutralization serve different purposes in chemistry and can address specific types of reactions or interactions. Fermentation, on the other hand, is a biological process rather than a chemical reaction focused on odor elimination. Therefore, oxidation stands out as the most effective reaction for tackling skunk and decomposition odors specifically through its ability to break down offending odor-causing compounds.