Question:

Arrange the oxides CrO, Cr2O3 and CrO3 in the decreasing order of acidic strength

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Remember, as the oxidation state of the metal increases, its oxides tend to become more acidic.
Updated On: May 13, 2025
  • CrO3>Cr2O3>CrO
  • CrO3>CrO>Cr2O3
  • CrO>Cr2O3>CrO3
  • CrO3>CrO>Cr2O3
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The Correct Option is A

Solution and Explanation

The acidic strength of the oxides of chromium increases as the oxidation state of chromium increases. Hence, CrO3 is the most acidic, followed by Cr2O3 and CrO. Thus, the correct order is CrO3>Cr2O3>CrO.
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