Which of the following diatomic molecules would be stabilised by the removal of an electron ?

O_{2}

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C N

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N_{2}

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C_{2}

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Solution

The correct option is A $O_{2}$
$O_{2}$ molecule is stabilized by the removal of an electron as the electron is removed from antibonding pi MO.
The MO configuration of $O_{2}$ molecule is $K K (σ 2 s)^{2} (σ^{} 2 s)^{2} (σ 2 p_{z})^{2} (π 2 p_{y})^{2} (π 2 p_{z})^{2} (π^{} 2 p_{y})^{1} (π^{*} 2 p_{z})^{1}$ .
$C N^{-}, N_{2}$ and $C_{2}$ are destabilized by the removal of an electron as the electron is removed from bonding MO.

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Similar questions

Q. Which of the following diatomic molecules would be stabilized by the removal of an electron?

Q. Which of the following changes in the respective bond order values are caused by removal of an electron from

N_{2}

and

F_{2}

molecules?

Q. Number of paramagnetic molecules from the following are:

C N^{-}, N O, O_{2}^{2 -}, O_{2}, N O_{2}, O_{2}^{-}, B_{2}, C_{2}, F_{2}^{-}

Q. Statement 1:
Removal of one electron from

N_{2}

decreases the bond order of

N_{2}

, while removal of an electron from

O_{2}

increases the bond order.
Statement 2:
Removal of an electron from nitrogen atom is difficult as less number of electrons are present in nitrogen than removal of an electron from

O_{2}

Calculate the total number of molecules that will possess fractional bond order among the following molecules
$O_{2}^{2 +}, N_{2}^{2 +}, O_{2}^{+}, N O, C O, C O^{+}, O_{2}^{-}, N O^{2 +}, C N^{-}, N O^{2 -}, N_{2}^{-}$

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