Which one of the following species doesn't have a magnetic moment of 1 . 73 BM , (spin only value)?

Step-by-step solution

Species must not contain single unpaired O 2 + → σ 1   s 2 < σ 1   s * 2 < σ 2   s 2 < σ 2   s * 2 < σ 2 pz 2 < π 2 px 2 = π 2 py 2 < π 2 px * 1 = π 2 py * 0 unpaired e - = 1 ∴ μ = 1 . 73   BM (1) Cu + I - Cu + → [ Ar ] 3   d 10 ∴ unpaired e - = 0 I - → [ Xe ] ∴ unpaired e - = 0 therefore μ = 0 3 .   Cu NH 3 4 Cl 2 Cu → [ A ] 3   d 3 ∴ unpaired = 1 &#