Question:medium
Which of the following is the correct order of acidic character of oxides of vanadium?
Which of the following is the correct order of acidic character of oxides of vanadium?
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In general, the acidity of oxides increases as the oxidation state of the metal increases. Higher oxidation states result in stronger acidity.
Updated On: Jul 2, 2026
- \( \text{V}_2\text{O}_5>\text{VO}_2>\text{V}_2\text{O}_3 \)
- \( \text{V}_2\text{O}_3>\text{VO}_2>\text{V}_2\text{O}_5 \)
- \( \text{V}_2\text{O}_5>\text{V}_2\text{O}_3>\text{VO}_3 \)
- \( \text{VO}_2>\text{V}_2\text{O}_3>\text{V}_2\text{O}_5 \)
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The Correct Option is A
Solution and Explanation
To establish the acidic character order of vanadium oxides, the oxidation states of vanadium within each oxide must be evaluated. The acidity of oxides escalates with the metal's oxidation state. Oxides exhibiting higher oxidation states are generally more acidic due to their enhanced electron-accepting capability, leading to acidic aqueous solutions.- \(\text{V}_2\text{O}_5\): Vanadium in this oxide is in the +5 oxidation state, conferring high acidity.- \(\text{VO}_2\): Vanadium in this oxide is in the +4 oxidation state, resulting in moderate acidity.- \(\text{V}_2\text{O}_3\): Vanadium in this oxide is in the +3 oxidation state, indicating lower acidity.Consequently, the order of acidic character is:\[\text{V}_2\text{O}_5>\text{VO}_2>\text{V}_2\text{O}_3\]
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