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Introduction to Carbon Family

Bond order is...

Question

Bond order is associated with the strength of bond and bond length. The higher the bond order, the smaller will be the bond length and stronger will be the bond.

Arrange $O_{2}, O_{2}^{+}, O_{2}^{-}$ and $O_{2}^{2 -}$ in order of increasing bond order.

A

O_{2} < {O_{2}}^{-} < O_{2}^{2 -} < O_{2}^{+}

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B

O_{2}^{2 -} < {O_{2}}^{-} < O_{2} < O_{2}^{+}

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C

{O_{2}}^{-} < {O_{2}}^{2 -} < O_{2}^{+} < O_{2}

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D

O_{2}^{2 +} < O_{2}^{+} < {O_{2}}^{-} < O_{2}

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Solution

The correct option is A $O_{2}^{2 -} < {O_{2}}^{-} < O_{2} < O_{2}^{+}$
The bond orders of $O \frac{2 -}{2}, O_{2}^{-}, O_{2}, O \frac{+}{2}$ are 1, 1.5, 2, 2.5 respectively.
The increasing bond order is $O_{2}^{2 -} < O_{2}^{-} < O_{2} < O_{2}^{+}$

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