Most Important Selected Qs for JEE AdvancedChemistryChemical Bonding and Molecular Structure
In how many of the following molecules/ions, the number of electrons in molecular orbital (both & ) are more than or equal to 9 . (In ground state) (a) N ₂ (b) N ₂⁺ (c) Be ₂⁺ (d) B ₂⁻ (e) B ₂ (f) C ₂²⁻ (g) C ₂ (h) H ₂ (i) Li ₂⁺ (j) O ₂⁺ (k) F ₂⁺
Correct answer
5
Step-by-step solution
for molecules upto N ₂, 1 ~s ^2 ^* 1 ~s ^2 2 ~s ^2 ^* 2 ~s ^2 2 p _ x ^2= 2 p_y^2 2 p_z^2 order is followed. Hence in (a) 10 e ⁻ (b) 9 e⁻ (c) 7 e ⁻ (d) 8 e ⁻ (e) 8 e ⁻ (f) 10 e ⁻ (g) 8 e ⁻ (h) 2 e ⁻ (i) 5 e ⁻ are present