Question

The correct bond order in the following species is:
(a) $O_2^{2+} \ \textless \ O_2^- \ \textless \ O_2^+$
(b) $O_2^+ \ \textless \ O_2^- \ \textless \ O_2^{2+}$
(c) $O_2^- \ \textless \ O_2^+ \ \textless \ O_2^{2+}$
(d) $O_2^{2+} \ \textless \ O_2^+ \ \textless \ O_2^-$

Answer 1

the answer to this questions is

A