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The amphoteric oxide among V ₂ O ₃, ~V ₂ O ₄ and V ₂ O ₅ , upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is :

Options

  1. A+3
  2. B+4
  3. C+7
  4. D+5

Correct answer

D. +5

Step-by-step solution

V ₂ O ₅ is amphoteric oxide. V ₂ O ₅ gives VO ₄ ³⁻ on reaction with alkali oxidation state of V in VO ₄ ³⁻=+5

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