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?

Among the following molecules/ions,\({\rm{C}}_2^{2 - },{\rm{\;N}}_2^{2

1.	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?
A.	O2
B.	\(N_2^{2 - }\)
C.	\(O_2^{2 - }\)
D.	\(C_2^{2 - }\)
Answer» E.