Which of the following molecular orbitals has two nodal planes
$\sigma \,2s$
$\pi \,2{p_y}$
${\pi ^*}\,2{p_y}$
${\sigma ^*}\,2{p_x}$
Which of the following pairs of species have unpaired electrons in antibonding Molecular Orbital
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them :
The bond order of $O_2^ + $ is the same as in
The incorrect statement regarding molecular orbital $(s)$ is
The total number of species from the following in which one unpaired electron is present, is . . . . . . $\mathrm{N}_2, \mathrm{O}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{H}_2^{+}, \mathrm{CN}^{-}, \mathrm{He}_2^{+}$