Question: Among the following molecules / ions,
$\mathrm{C}_{2}^{2-}, \mathrm{N}_{2}^{2-}, \mathrm{O}_{2}^{2-}, \mathrm{O}_{2}$
which one is diamagnetic and has the shortest bond length?
$\mathrm{C}_{2}^{2-}$
$\mathrm{N}_{2}^{2-}$
$\mathrm{O}_{2}$
$\mathrm{O}_{2}^{2-}$
Correct Option: 1
Solution: