In which of the following pairs the two molecules have identical bond order
${N_2},O_2^{2 + }$
${N_2}$, $O_2^ - $
$N_2^ - $, ${O_2}$
$O_2^ + $, ${N_2}$
The correct order in which the $O -O$ bond length increases in the following is
Thermal decomposition of $AgNO _3$ produces two paramagnetic gases. The total number of electrons present in the antibonding molecular orbitals of the gas that has the higher number of unpaired electrons is. . . . .
Atomic number of an element is $26.$ The element shows
In which $O-O$ bond distance is minimum
Use molecular orbital theory to explain why the $Be_{2}$ molecule does not exist.