1. Tardigrade
  2. Question
  3. Chemistry
  4. In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?

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Q. In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?

AIEEEAIEEE 2007Chemical Bonding and Molecular Structure

Solution:

In $C_2 - C_2^+$ electron is removed from bonding molecular orbital so bond order decreases. In $NO \rightarrow NO^+$ , electron is removed from anti bonding molecular orbital so bond order increases and nature changes from paramagnetic to diamagnetic.
Hence, (2) is correct.