Question

Which amongst the following is incorrect statement?

• A. $O _{2}^{+}$ion is diamagnetic.
• B. The bond orders of $O _{2}^{+}, O _{2}, O _{2}^{-}$and $O _{2}^{2-}$ are $2.5,2,1.5$ and $1$ , respectively.
• C. $C _{2}$ molecule has four electrons in its two degenerate $\pi$ molecular orbitals.
• D. $H _{2}^{+}$ion has one electron.

Answer 1

Answer: (A)

$O _{2}^{+}$ion is having $15 $ electrons, so it contain one unpaired electron. Hence it is paramagnetic in nature.