Which amongst the following is incorrect statement? - Vidyadip

MCQ

Which amongst the following is incorrect statement?

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

✓

Answer

Correct option: C.

$O _{2}^{+}$ion is diamagnetic.

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

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