Assuming 2 s – 2 p mixing is NOT operative, the paramagnetic species among the following is

Question

Assuming 2 s – 2 p mixing is NOT operative, the paramagnetic species among the following is, B e 2, B 2, C 2, N 2

MARKS App · Accepted Answer

Assuming that no 2s-2p mixing takes place (i) B e 2 → σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 (diamagnetic) (ii) B 2 → σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 0 π 2 p y 0 (diamagnetic) (iii) C 2 → σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 1 π 2 p y 1 , π * 2 p x 0 π * 2 p y 0 , σ * 2 p z 0 (paramagnetic) (iv) N 2 → σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p z 2 , π 2 p x 2 π 2 p y 2 , π * 2 p x 0 π * 2 p y 0 , σ * 2 p z 0 (diamagnetic)

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