Question:
CrO$_3$ is _____ oxide?
CrO$_3$ is _____ oxide?
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CrO$_3$ is an important compound in organic synthesis and is often used in the Jones oxidation. It is a powerful oxidizer due to its +6 oxidation state.
Updated On: Apr 29, 2025
- Chromium (III) oxide
- Chromium (IV) oxide
- Chromium (V) oxide
- Chromium (VI) oxide
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The Correct Option is D
Solution and Explanation
The compound CrO$_3$ is known as Chromium (VI) oxide, or chromic acid anhydride. It contains chromium in the +6 oxidation state, which makes it a strong oxidizing agent. Chromium (VI) compounds, including CrO$_3$, are highly toxic and are used in various industrial processes such as metal finishing, tanning, and as a catalyst.
Chromium (III) oxide is Cr$_2$O$_3$ and contains chromium in the +3 oxidation state.
Chromium (IV) oxide is CrO$_2$ and contains chromium in the +4 oxidation state.
Chromium (V) oxide is less common and is represented by Cr$_2$O$_5$, containing chromium in the +5 oxidation state.
Thus, the correct name for CrO$_3$ is Chromium (VI) oxide.
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