JEE Main 2021 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 16 March 2021, Shift 2, Chemistry Q59

Question 59 of 90 in this shift, Chemistry question 29 of 30, Section B.

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

absorbs light of wavelength 498 nm during a d-d transition. The octahedral splitting energy for the above complex is ________

\times10^{-19}

J. (Round off to the Nearest Integer).

h=6.626\times10^{-34}

Js;

c=3\times10^8\ \mathrm{ms^{-1}}

Official answer

NTA final key.

Chapter: Coordination Compounds
Topic: Crystal Field Theory
Idea tested: Color and d-d Transitions

Same idea in other shifts

Asked 3× in all

3 Apr 2025, Shift 1 · Q63The correct order of the complexes $\mathrm{[Co(NH_3)_5(H_2O)]^{3+}}$ (A), $\mathrm{[Co(NH_3)_6]^{3+}}$ (B), $\mathrm{[Co(CN)_6]^{3-}}$ …MediumSingle correct
25 Jul 2022, Shift 1 · Q86Consider the following metal complexes : $[\mathrm{Co(NH_3)_6}]^{3+}$ $[\mathrm{CoCl(NH_3)_5}]^{2+}$ $[\mathrm{Co(CN)_6}]^{3-}$ …MediumNumerical value

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.