Among the following molecules/ions,
\({\rm{C}}_2^{2 - },{\rm{\;N}}_2^{2 - },{\rm{O}}_2^{2 - },{{\rm{O}}_2}\)
which one is diamagnetic and has the shortest bond length?1
O2
2
\(C_2^{2 - }\)
3
\(O_2^{2 - }\)
4
More than one of the above
5
None of the above