JEE Main 2025 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 4 April 2025, Shift 2, Chemistry Q59

Question 59 of 75 in this shift, Chemistry question 9 of 25, Section A.

'X' is the number of electrons in

\mathrm{t_{2g}}

orbitals of the most stable complex ion among

\mathrm{[Fe(NH_3)_6]^{3+}}

\mathrm{[FeCl_6]^{3-}}

\mathrm{[Fe(C_2O_4)_3]^{3-}}

and

\mathrm{[Fe(H_2O)_6]^{3+}}

. The nature of oxide of vanadium of the type

\mathrm{V_2O_X}

is :

(1)Neutral
(2)AmphotericOfficial answer
(3)Basic
(4)Acidic

Official answer

Option 2

NTA final key.

Chapter: Coordination Compounds
Topic: d-Block Elements
Idea tested: Acid-Base Character of Oxides

Same idea in other shifts

Asked 5× in all

7 Apr 2025, Shift 1 · Q61The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion ( $\mathrm{M^{n+}}$ )…MediumSingle correct
7 Apr 2025, Shift 2 · Q61'X' is the number of acidic oxides among $\mathrm{VO_2}$ , $\mathrm{V_2O_3}$ , $\mathrm{CrO_3}$ , $\mathrm{V_2O_5}$ and $\mathrm{Mn_2O_7}$ .…MediumSingle correct
31 Jan 2024, Shift 2 · Q69Choose the correct statements from the following A. $\mathrm{Mn_2O_7}$ is an oil at room temperature B. $\mathrm{V_2O_4}$ reacts with acid…MediumOther
2 Apr 2017 (offline) · Q47In the following reactions, ZnO is respectively acting as a/an : (a) $\mathrm{ZnO+Na_2O\rightarrow Na_2ZnO_2}$ (b)…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.