In which of the following ionization processes the bond energy has increased and also the magnetic behaviour…

In which of the following ionization processes the bond energy has increased and also the magnetic behaviour has changed from paramagnetic to diamagnetic ?
  1. $\mathrm{NO} \rightarrow \mathrm{NO}^{+}$
  2. $\mathrm{N}_2 \rightarrow \mathrm{N}_2^{+}$
  3. $\mathrm{C}_2 \rightarrow \mathrm{C}_2^{+}$
  4. $\mathrm{O}_2 \rightarrow \mathrm{O}_2^{+}$

Solution

For $\mathrm{NO}$ Total no. of electrons $=15$ $\mathrm{B.O}=2.5$ Mag. Behaviour $=$ Paramagnetic For $\mathrm{NO}^{+}$ Total no. of electrons $=14$ $\mathrm{B.O}$=3$ Mag. Behaviour $=$ Diamagnetic

Asked in: JEE Main 2013 (09 Apr Online)

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