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  • Help me solve this In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?

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

  • Option 1)

    N_{2}\rightarrow N{_{2}}^{+}

  • Option 2)

    C_{2}\rightarrow C{_{2}}^{+}

  • Option 3)

    NO\rightarrow NO^{+}

  • Option 4)

    O_{2}\rightarrow O{_{2}}^{+}

 

Answers (2)

best_answer

As we learnt in 

Bond Order -

Bond order is defined as one half the difference between the number of electrons present in the bonding and the antibonding orbitals.

- wherein

Bond \:Order=\frac{N_{b}-{N_{a}}}{2}

 

 and

Magnetic behaviour of molecule -

If  all the molecular orbitals in a molecule are doubly occupied, the substance is diamagnetic

- wherein

However if one or more molecular orbital are singly occupied it is paramagnetic e.g. O2

 

 

Molecular orbital configuration of

\Rightarrow paramagnetic

Bond\: order\: = \frac{10-6}{2}= 2

Bond\: order\: = \frac{10-5}{2}= 2.5

 

Bond\: order\: = \frac{10-4}{2}=3

Bond\: order\: = \frac{9-4}{2}= 2.5

Bond\: order\: = \frac{8-4}{2}= 2

Bond\: order\: = \frac{7-4}{2}= 1.5

Bond\: order\: = \frac{10-5}{2}= 2.5

Bond\: order\: = \frac{10-4}{2}=3


Option 1)

N_{2}\rightarrow N{_{2}}^{+}

This option is incorrect

Option 2)

C_{2}\rightarrow C{_{2}}^{+}

This option is incorrect

Option 3)

NO\rightarrow NO^{+}

This option is correct

Option 4)

O_{2}\rightarrow O{_{2}}^{+}

This option is incorrect

Posted by

prateek

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