In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?
Select the correct option:
A
$\mathrm{N}_2 \rightarrow \mathrm{~N}_2+$
B
$\mathrm{O}_2 \rightarrow \mathrm{O}_2^{+}$
C
$\mathrm{O}_2 \rightarrow \mathrm{O}_2^{2-}$
D
$\mathrm{NO} \rightarrow \mathrm{NO}^{+}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
N₂ Diamagnetic → N₂⁺ (Paramagnetic)
O₂ Paramagnetic → O₂⁺ (Paramagnetic)
O₂ Paramagnetic → O₂⁻ (Diamagnetic but bond order decreases from 2 to 1)
NO (Paramagnetic) → NO⁺ (Diamagnetic, bond order 2.5)
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