Chemical Bonding – General · ABC26IN0316
Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Chemical Bonding – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
| Column – I (Molecular Species) | Column – II (Bond order and magnetic property) |
|---|
| P. $\mathrm{O_2^{-}}$ | I. 2.5, paramagnetic |
| Q. $\mathrm{O_2}$ | II. 2.0, diamagnetic |
| R. $\mathrm{O_2^{+}}$ | III. 1.5 diamagnetic |
| S. $\mathrm{O_2^{2-}}$ | IV. 1.0, diamagnetic |
| V. 2.0, paramagnetic |
| VI. 1.5, paramagnetic |
(a)P - III, Q - V, R - IV, S - III
(b)P - II, Q - II, R - IV, S - III
(c)P - III, Q-V, R - IV, S - VI
(d)P - VI, Q - V, R - I, S - IV
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Bond orders/magnetism: O₂⁺ 2.5 paramagnetic (I); O₂ 2.0 paramagnetic (V); O₂⁻ 1.5 paramagnetic (VI); O₂²⁻ 1.0 diamagnetic (IV). Only option (d) uses exactly this set.
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