Final answer:
Oxidizing agents like chromic acid are powerful substances that facilitate the oxidation of other compounds in chemical reactions.
Explanation:
Oxidizing agents are substances that can accept electrons from other substances in a redox reaction, causing the oxidation of the other substance. Chromic acid (H₂CrO₄) is a strong oxidizing agent commonly used in laboratory reactions to oxidize alcohols to carboxylic acids or ketones. Chromic acid is usually prepared in situ by mixing a strong acid like sulfuric acid with a chromium salt.
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