Question

N₂ and O₂ are converted into monocations, N₂⁺ and O₂⁺ respectively. Which is wrong? 

(a) In O₂ paramagnetism decreases. 

(b) N₂⁺ becomes diamagnetic. 

(c) In N₂, the N - N bond weakens. 

(d) In O₂, the O - O bond order increases.

Answer 1

The correct option is: (b) N₂⁺ becomes diamagnetic. 

Explanation:

Diamagnetism is caused due to the absence of unpaired electrons. But in N₂⁺, there is unpaired electron. So. it is paramagnetic.