Which of the following diatomic molecular species has only $\pi$ bonds according to Molecular Orbital Theory?
$O_2$
$N_2$
$C_2$
$Be_2$
Correct decreasing order of bond order of oxygen species in $I$ to $IV$
$(I)$ $Na_2O_2$
$(II)$ $O_2 [AsF_6]$
$(III)$ $CsO_2$
$(IV)$ $O_2$
Which of the following statement is correct for peroxide ion
$A.$ has completely filled antibonding molecular orbitals
$B.$ is diamagnetic
$C.$ has bond order one
$D.$ is isoelectronic with Neon
Which one of the following molecules is paramagnetic
Which of the following is paramagnetic
The bond order in $N_2^ + $ ion is