Which pair among the following does not have the same bond order?

Step-by-step solution

We know that, For O ₂⁺ Molecular orbital configuration of O ₂⁺ is l s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_z^2 2 p_x^2 2 p_y^2 ^* 2 p_x^1 Number of electrons in bonding orbital =10 Number of electrons in antibonding orbital =5 Bond order of NO ₂⁺= 10-5 2 =2.5 For NO ⁺ Molecular orbital configuration is 1 s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_x^2 2 p_y^2 2 p_z^2 Number of electrons in bonding orbital =10 Number of electrons in antibonding orbital =4 Bond order = 10-4 2 =3 So, O ₂⁺ and NO ⁺ does not have same bond order.