The pair of species with the same bond order is :

  • Option 1)

    \text{O}_{2}^{2-},\ \text{B}_{2}

  • Option 2)

    \text{O}_{2}^{+},\ \text{NO}^{+}

  • Option 3)

    \text{NO},\ \text{CO}

  • Option 4)

    \text{N}_{2},\ \text{O}_{2}

 

Answers (1)

Bond order of given molecules are as follows:

B.O. of \ O_{2}^{2-}=1

B.O. of \ O_{2}^{+}=2.5

B.O. of \ NO =2.5

B.O. of \ N_{2} =3

B.O. of \ B_{2} =1

B.O. of \ NO^{+} =3

B.O. of \ CO =3

B.O. of \ O_{2} =2

Hence Bond order of {O_{2}}^{2-} and B_{2} is same.

 


Option 1)

\text{O}_{2}^{2-},\ \text{B}_{2}

This option is correct.

Option 2)

\text{O}_{2}^{+},\ \text{NO}^{+}

This option is incorrect.

Option 3)

\text{NO},\ \text{CO}

This option is incorrect.

Option 4)

\text{N}_{2},\ \text{O}_{2}

This option is incorrect.

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