Which among the following are having diamagnetic property? (i) B ₂ (ii) N ₂ (iii) O ₂ (iv) C ₂

Step-by-step solution

Molecular orbital configuration for (i) B ₂(10)= 1 s^2, ^* 1 s^2, 2 s^2, ^* 2 s^2, p_x^1 p_y^1 Two unpaired electrons, paramagnetic. (ii) N ₂(14) = 1 s^2, ^* 1 s^2, 2 s^2, * 2 s^2, p_x^2 p_y^2, 2 p_z^2 No unpaired electrons, diamagnetic. (iii) O ₂(16) aligned = & 1 s^2, ^* 1 s^2, 2 s^2, * 2 s^2, 2 p_z^2, 2 p_x^2 2 & * 2 p_x^1, * 2 p_y^1 aligned Two unpaired electrons, paramagnetic (iv) C ₂(12) = 1 s^2, * 1 s^2, 2 s^2, * 2 s^2, 2 p_x^2 2 p_y^2 No unpaired electron, diamagnetic.