Which of the following is paramagnetic ?
$N_2$
$H_2$
$Li_2$
$O_2$
In which of the following pairs of molecules/ions, both the species are not likely to exist?
${N_2}$ and ${O_2}$ are converted into monoanions $N_2^ - $ and $O_2^ - $ respectively, which of the following statements is wrong
The pair of species that has the same bond order in the following is
Which amongst the following is incorrect statement?
Which of the following molecular orbital has two nodal planes