In which of the following ionisation processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic?

Step-by-step solution

Molecular orbital configuration of aligned & O ₂= 1 s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_z^2 2 p_x^2 ^* 2 p_x^1 ^* 2 p_y^1 & Paramagnetic & Bond order = 10-6 2 =2 & O ₂⁺= 1 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 & Paramagnetic & Bond order = 10-5 2 =2.5 & C ₂= 1 s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_x^2 2 p_y^2 & Diamagnetic & Bond order = 8-4 2 =2 & C ₂⁺= 1 s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_x^2 2 p_y^1 aligned Paramagnetic Bond order = 7-4 2 =1.5 NO = 1 s^2 ^* 1 s^2 2 s^2 ^* 2 s^2 2 p_z^2 2 p_x^2 2 p_y^