Question

$N_{2}$ and $O_{2}$ are converted to mono cations $N_{2}^{+}$ and $O_{2}^{+}$ respectively. The wrong statement with respect to given changes in the following is

• A. the N - N bond weakens
• B. the O - O bond order increases
• C. the $O-O$ bond length decreases
• D. $N_{2}^{+}$ becomes diamagnetic

Answer 1

Answer: (D)

B.O or $N_{2}=3$ and $N_{2}^{+}=2.5$



As here bond order decreases so $N-N$ bond get weak $N_{2}^{+}$ becomes paramagnetic

In case of $O_{2}$ and $O_{2}^{+}$

B.O or $O_{2}=2$ and $O_{2}^{+}=2.5$

as bond order increases so $O-O$ bond length decreases.