The amphoteric oxide among $\mathrm{V}_2 \mathrm{O}_3, \mathrm{~V}_2 \mathrm{O}_4$ and $\mathrm{V}_2…

The amphoteric oxide among $\mathrm{V}_2 \mathrm{O}_3, \mathrm{~V}_2 \mathrm{O}_4$ and $\mathrm{V}_2 \mathrm{O}_5$, upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is :
  1. $+3$
  2. $+4$
  3. $+7$
  4. $+5$

Solution

$\mathrm{V}_2 \mathrm{O}_5$ is amphoteric oxide.
$\mathrm{V}_2 \mathrm{O}_5$ gives $\mathrm{VO}_4{ }^{3-}$ on reaction with alkali oxidation state of V in $\mathrm{VO}_4{ }^{3-}=+5$

Asked in: JEE Main 2025 (28 Jan Shift 2)

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