Question

`N_2` and `O_2` are converted into mono positive cations `N_2^+` and `O_2^+` respectively. Which is in correct
A. In `N_2^+`, the N-N bond is weakened
B. In `O_2^+`, the O-O bond is weakened
C. In `O_2^+` para magnetism increases
D. `N_2^+` becomes diamagnetic

Answer 1

Correct Answer - D
Bond order of `N_2` is 3 and that of `N_2^(+)` is 2.5 where bond order of oxygen changes from 2(in `O_2`) to 2.5 (in `O_2^(+)`). `N_2^(+)` is paramagnetic due to the presence of one unpaired electrons in `sigma_(2pz)` orbital.