In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic.

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Infinity Learn · Accepted Answer

Molecular orbital configuration $$ofO2$$⇒σ$$1s2$$σ$$*1s2$$σ$$2s2$$σ$$*2s2$$σ$$2pz2$$$$π$$$$2px2$$$$π$$$$2py2$$π$$*2px1$$π$$*2py1$$ ⇒ Paramagnetic   Bondorder $$=10-62=2$$ $$O2+$$⇒σ$$1s2$$σ$$*1s2$$σ$$2s2$$σ$$*2s2$$σ$$2pz2$$$$π$$$$2px2$$$$π$$$$2py2$$π$$*2px1$$ ⇒ Paramagnetic   Bondorder $$=10-52=2.5$$ $$C2$$⇒σ$$1$$ $$s2$$σ$$*1$$ $$s2$$σ$$2$$ $$s2$$σ$$*2$$ $$s2$$$$π$$$$2px2$$$$π$$$$2py2$$ ⇒ Diamagnetic   Bondorder $$=8-42=2$$ $$C2+$$⇒σ$$1$$ $$s2$$σ$$*1$$ $$s2$$σ$$2$$ $$s2$$σ$$*2$$ $$s2$$$$π$$$$2px2$$$$π$$$$2py1$$ ⇒ Paramagnetic   Bondorder $$=7-42=1.5$$ NO⇒σ$$1$$ $$s2$$σ$$*1$$ $$s2$$σ$$2$$ $$s2$$σ$$*2$$ $$s2$$σ$$2pz2$$$$π$$$$2px2$$$$π$$$$2py2$$π$$*2px1$$ ⇒ Paramagnetic   Bondorder $$=10-52=2.5$$ $$NO+$$⇒σ$$1s2$$σ$$*1s2$$σ$$2s2$$σ$$*2s2$$σ$$2pz2$$$$π$$$$2px2$$$$π$$$$2py2$$ ⇒ Diamagnetic.  $$NO+$$⇒σ$$1$$ $$s2$$σ$$*1$$ $$s2$$σ$$2$$ $$s2$$σ$$*2$$ $$s2$$σ$$2pz2$$$$π$$$$2px2$$$$π$$$$2py2$$ ⇒ Diamagnetic.   Bondorder $$=10-42=3$$ $$N2$$⇒σ$$1s2$$σ$$*1s2$$σ$$2s2$$σ$$*2s2$$$$π$$$$2px2$$$$π$$$$2py2$$σ$$2pz2$$ ⇒ Paramagnetic   Bondorder $$=9-42=2.5$$ ⇒ Paramagnetic

In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic.

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