Which one of the following pairs of species have the same bond order?

  • Option 1)

    CO, NO

  • Option 2)

    O2, NO+

  • Option 3)

    CN-, CO

  • Option 4)

    \text{N}_2 ,\text{O}_2^ -

 

Answers (1)

 

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}

 

 Bond order = 1/2(Nb - Na).

 

O2 : N b = 10, N a = 6, Bond order = 2

NO+ : N b = 10, N a = 4, Bond order = 3

CN- : N b = 10, Na = 4, Bond order = 3

CO : N b = 10, Na = 4, Bond order = 3

N2 : N b = 10, Na = 4, Bond order = 3

O-2 : N b = 10, Na = 7, Bond order = 1.5

NO : N b = 10, Na = 5, Bond order = 2.5


Option 1)

CO, NO

this is the incorrect option

Option 2)

O2, NO+

this is the incorrect option

Option 3)

CN-, CO

this is the correct option

Option 4)

\text{N}_2 ,\text{O}_2^ -

this is the incorrect option

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