JEE Main 2023 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 15 April 2023, Shift 1, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

The homoleptic and octahedral complex of

\mathrm{Co^{2+}}

and

\mathrm{H_2O}

has __________ unpaired electron(s) in the

\mathrm{t_{2g}}

set of orbitals.

Official answer

NTA final key.

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

Same idea in other shifts

Asked 4× in all

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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 108 of the 174 JEE Main shifts held from 2017 to 2026.