JEE Main 2026 — Chemical Bonding and Molecular Structure Question with Solution
JEE Main 2026 (24 January Shift 2)
Question
Pair of species among the following having same bond order as well as paramagnetic character will be-
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Bond orders and magnetic character:
O₂⁻ (BO=1.5, paramagnetic), O₂⁺ (BO=2.5, paramagnetic), O₂²⁻ (BO=1, diamagnetic);
N₂⁺ (BO=2.5, paramagnetic), N₂⁻ (BO=2.5, paramagnetic), N₂²⁻ (BO=2, diamagnetic)
1: BO 1.5 vs 2.5 (different);
2: BO 2.5 vs 2 (different);
3: BO 1.5 vs 2.5 (different);
4: O₂⁺ (BO=2.5, paramagnetic) and N₂⁻ (BO=2.5, paramagnetic) - both same bond order and paramagnetic character
O₂⁻ (BO=1.5, paramagnetic), O₂⁺ (BO=2.5, paramagnetic), O₂²⁻ (BO=1, diamagnetic);
N₂⁺ (BO=2.5, paramagnetic), N₂⁻ (BO=2.5, paramagnetic), N₂²⁻ (BO=2, diamagnetic)
1: BO 1.5 vs 2.5 (different);
2: BO 2.5 vs 2 (different);
3: BO 1.5 vs 2.5 (different);
4: O₂⁺ (BO=2.5, paramagnetic) and N₂⁻ (BO=2.5, paramagnetic) - both same bond order and paramagnetic character
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This is a previous-year question from JEE Main 2026, covering the Chemical Bonding and Molecular Structure chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.