JEE Main 2013 Chemistry question

ChemistryChemical Bonding and Molecular StructureJEE Main 2013

In which of the following ionization processes the bond energy has increased and also the magnetic behaviour has changed from paramagnetic to diamagnetic ?

Answer: (1)

Solution

NO (bond order 2.5, one unpaired π* electron) loses that antibonding electron to give (bond order 3, all paired): bond

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Question ID VK-103928