Which of the following is paramagnetic and contains a three-electron bond in its structure?

Which of the following is not paramagnetic?

Explain the structure of the $O_2$ molecule.

The correct order of bond length is:

Among the following molecules / ions $C_2^{2-}, N_2^{2-}, O_2^{2-}, O_2$,which one is diamagnetic and has the shortest bond length?

In case of heteronuclear diatomics of the type $AB$, where $A$ is more electronegative than $B$, the bonding molecular orbital resembles the character of $A$ more than that of $B$. The statement