Chemistry - CHEMICAL BONDING Question with Solution | TestHub

LUMO level for ${\mathrm{C}}_2$ molecule is ${\sigma }_{2{\mathrm{p}}_{\mathrm{z}}}$ orbital

In ${\mathrm{C}}_2$ molecules both the bonds are $\pi$ bonds

In ${\mathrm{C}}_2{}^{2-}$ ion there is one $\sigma$ and two $\pi$ bonds

All the above are correct