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Q.
In which of the following, both magnetic moment and bond order decrease?
Solution:
Bond order of $CO^{+}=3.5$ (Paramagnetic)
Bond order of $CO=3$ (Diamagnetic)
Bond order of $O_{2}^{-}=1.5$ (Paramagnetic)
Bond order of $O_{2}^{2-}=1$ (Diamagnetic)
Bond order of $N_{2}=3$ (Diamagnetic)
Bond order of $N^{+}_{2}=2.5$ (Paramagnetic)