Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202528 JanuaryEvening Shift
Exam
JEE Main
Year
2025
Date
28 January
Shift
Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2025 · 28 January · Evening Shift · Chemistry · d and f Block Elements

The amphoteric oxide among V_2 O_3, ~V_2 O_4 and V_2 O_5 , upon...

The amphoteric oxide among V2O3, V2O4\mathrm{V}_2 \mathrm{O}_3, \mathrm{~V}_2 \mathrm{O}_4 and V2O5\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 :

Options

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

Correct answer

D. +5+5

Step-by-step solution

V2O5\mathrm{V}_2 \mathrm{O}_5 is amphoteric oxide. V2O5\mathrm{V}_2 \mathrm{O}_5 gives VO43−\mathrm{VO}_4{ }^{3-} on reaction with alkali oxidation state of V in VO43−=+5\mathrm{VO}_4{ }^{3-}=+5
Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Given below are two statements: Statement I: The number of pairs among [Ti^ 4+ , V^ 2+ ]… JEE Main 2026Given below are two statements for catalytic properties of transition metals. Statement… JEE Main 2026The correct order of first (Δ_i H_1) and second (Δ_i H_2) ionisation enthalpy values of… JEE Main 2026The correct statements among the following are. A. Basic vanadium oxide is used in the… JEE Main 2026Given below are two statements : Statement I: Presence of large number of unpaired… JEE Main 2026A paper dipped in a dil. H_2SO_4 solution of ' X ' upon treatment with SO_2 gas turns… JEE Main 2026Which of the following is NOT a physical or chemical characteristics of interstitial… JEE Main 2026Pairs of elements with the same number of electrons in their respective 4f orbital are… JEE Main 2026 Full d and f Block Elements list All JEE Main PYQs