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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceTwo statementsEasyConceptual

JEE Main 5 April 2026, Shift 1, Chemistry Q62

Question 62 of 75 in this shift, Chemistry question 12 of 25, Section A.

Given below are two statements: Statement I: Each electron in ege_g orbitals destabilizes the orbitals by +0.6 Δo+0.6\,\Delta_o and each electron in the t2gt_{2g} orbitals stabilizes the orbitals by −0.4 Δo-0.4\,\Delta_o in an octahedral field on the basis of crystal field theory. Statement II: All the d - orbitals of the transition metals have the same energy in their free atomic state but when a complex is formed the ligands destroy the degeneracy of these orbitals on the basis of crystal field theory. In the light of the above statements, choose the correct answer from the options given below
  1. (1)Both Statement I and Statement II are correctOfficial answer
  2. (2)Both Statement I and Statement II are incorrect
  3. (3)Statement I is correct but Statement II is incorrect
  4. (4)Statement I is incorrect but Statement II is correct

Official answer

Option 1

NTA final key.

Chapter
Coordination Compounds
Topic
Crystal Field Theory
Idea tested
Octahedral Field Splitting

Same topic in other shifts

All Crystal Field Theory questions
  1. 2 Apr 2026, Shift 1 · Q62Match List - I with List - II. List - I : Chromium (III) Complexes (en = ethylene diamine) List - II : Δ0\Delta_0 (cm−1\mathrm{cm^{-1}}) A.…MediumMatch the list
  2. 4 Apr 2026, Shift 1 · Q62Match the LIST-I with LIST-II List-I (Complex ion): A. [Cr(H2O)6]2+[\mathrm{Cr(H_2O)_6}]^{2+}; B. [Co(H2O)6]2+[\mathrm{Co(H_2O)_6}]^{2+}; C.…EasyMatch the list
  3. 4 Apr 2026, Shift 2 · Q60Consider the metal complexes [Ni(en)3]2+\mathrm{[Ni(en)_3]^{2+}} (A), [NiCl4]2−\mathrm{[NiCl_4]^{2-}} (B) and [Ni(NH3)6]2+\mathrm{[Ni(NH_3)_6]^{2+}} (C). Choose the…MediumSingle correct
  4. 5 Apr 2026, Shift 2 · Q71The total number of unpaired electrons present in the d3d^3, d4d^4 (low spin) d5d^5 (high spin), d6d^6 (high spin) and d7d^7 (low spin)…EasyNumerical value
  5. 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
  6. 6 Apr 2026, Shift 1 · Q62Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex? A. dxy=dxz>dx2−y2d_{xy}=d_{xz}>d_{x^2-y^2} B.…EasyOther

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.