Question
$${N_2}$$ and $${O_2}$$ are converted into monocations, $$N_2^ + $$ and $$O_2^ + $$ respectively. Which of the following statements is wrong?
A.
In $$N_2^ + ,N - N$$ bond weakens
B.
In $$O_2^ + ,$$ the $$O - O$$ bond order increases
C.
In $$O_2^ + ,$$ paramagnetism decreases
D.
$$N_2^ + $$ becomes diamagnetic
Answer :
$$N_2^ + $$ becomes diamagnetic
Solution :
$$\sigma _b^2\sigma _a^{_ * 2}\sigma _b^2\sigma _a^{^ * 2}\left( {\pi _b^2 = \pi _b^2} \right)\sigma _b^1\left( {N_2^ + = 13\,{\text{electrons}}} \right)$$
it contains one unpaired electron hence paramagnetic