Question

Assuming 2s - 2p mixing is not operative the paramagnetic species among the following is:

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

For $C_2=\sigma 1s^2,{\sigma }^{\ast }1s^2,\sigma 2s^2,{\sigma }^{\ast }2s^2,\sigma 2{p_z}^2,(\pi 2{p_x}^1=\pi 2{p_y}^1)$