Which of the following species show maximum ionisation energy and nodal plane
$\sigma 2{p_z}$
$\pi 2{p_x}$
${\sigma ^ * }2{p_z}$
${\sigma ^ * }2{p_y}$
In the molecular orbital diagram for the molecular ion, $N_2^ + $ , the number of electrons in the ${\sigma _{2p}}$ molecular orbital is
Which of the following facts given is not correct ?
$(I)$ Bond length order : $H^-_2 = H^+_2 > H_2$
$(II)\, O^+_2 ,NO,N^-_2$ have same bond order of $2 \frac{1}{2}$
$(III)$ Bond order can assume any value including zero upto four
$(IV)\, NO^-_3$ and $BO^-_3$ have same bond order for $X - O$ bond (where $X$ is central atom)
Bond order of $1.5$ is shown by-
The bond order and magnetic property of acetylide ion are same as that of $........$.
The species having no $P\pi - P\pi $ bond but has bond order equal to $O_2$