Question
Pair of species among the following having same bond order as well as paramagnetic character will be-
JEE Main
Chemistry
Chemical Bonding and Molecular Structure
2026
JEE Main 2026 (24 January Shift 2)
JEE Main Chemistry Question (2026) — Solution
Options
- A. O _ 2 ^ - , N _ 2 ^ +
- B. O _ 2 ^ + , N _ 2 ^ 2-
- C. O _ 2 ^ - , N _ 2 ^ -
- D. O _ 2 ^ + , N _ 2 ^ -
Answer
D. O _ 2 ^ + , N _ 2 ^ -
Step-by-step solution
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
Related: Chemistry — Chemical Bonding and Molecular Structure · All PYQ Banks