JEE Main · Chemistry · Chemical Bonding and Molecular Structure
Isoelectronic Species Principle in MOT
JEE Main asked Isoelectronic Species Principle in MOT once in the 108 shifts Lumi analysed, on 12 Apr 2023, Shift 1. It belongs to Molecular Orbital Theory, in Chemical Bonding and Molecular Structure (Chemistry).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2023
- the only year
- Pattern
- Occasional
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: conceptual.
- Species matching acetylide bond order and magnetism
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 12 Apr 2023, Shift 1.
Same topic
Other ideas in Molecular Orbital Theory
Molecular Orbital Theory has 11 ideas JEE Main has asked; 4 of them came up in more than one question.
- Bond Order Calculation11× · 2024
- Magnetic Property Prediction9× · 2024
- Oxygen Ion Series Comparison4× · 2026
- LCAO and MO Formation3× · 2024
- Nodal Planes in Molecular Orbitalsonce · 2026
- Counting Antibonding Electronsonce · 2024
- Isoelectronic Bond Order Shortcutonce · 2024
- Symmetry of Pi Molecular Orbitalsonce · 2024
- LUMO as Pi-Acceptoronce · 2022
- Bond Stability Comparisononce · 2020