JEE Main 2025 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 2 April 2025, Shift 2, Chemistry Q60

Question 60 of 75 in this shift, Chemistry question 10 of 25, Section A.

The d-orbital electronic configuration of the complex among

\mathrm{[Co(en)_3]^{3+}}

\mathrm{[CoF_6]^{3-}}

\mathrm{[Mn(H_2O)_6]^{2+}}

and

\mathrm{[Zn(H_2O)_6]^{2+}}

that has the highest CFSE is :

(1) $t_{2g}^{6}e_g^{4}$
(2) $t_{2g}^{3}e_g^{2}$
(3) $t_{2g}^{4}e_g^{2}$
(4) $t_{2g}^{6}e_g^{0}$ Official answer

Official answer

Option 4

NTA final key.

Chapter: Coordination Compounds
Topic: Crystal Field Theory
Idea tested: CFSE Calculation

Same idea in other shifts

Asked 3× in all

6 Apr 2026, Shift 1 · Q61Match the LIST-I with LIST-II List-I (Electronic configuration of tetrahedral metal ion) | List-II (Crystal Field Stabilization Energy…MediumMatch the list
2 Sep 2020, Shift 1 · Q37Consider that a $d^{6}$ metal ion ( $\mathrm{M^{2+}}$ ) forms a complex with aqua ligands, and the spin only magnetic moment of the complex…HardSingle 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.