Number of molecules having bond order $2$ from the following molecule is. . . . . . . $\mathrm{C}_2, \mathrm{O}_2, \mathrm{Be}_2, \mathrm{Li}_2, \mathrm{Ne}_2, \mathrm{~N}_2, \mathrm{He}_2$
$1$
$2$
$5$
$8$
Bond order is a concept in the molecular orbital theory. It depends on the number of electrons in the bonding and antibonding orbitals. Which of the following statements is true about it ? The bond order
Which amongst the following is incorrect statement?
According to the molecular orbital theory, the bond order in ${C_2}$ molecule is
During the change of $O _{2}$ to $O _{2}^{-}$, the incoming electron goes to the orbital :
Which of the following species is paramagnetic?