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The correct order of O-O bond length in ...

The correct order of `O-O` bond length in `O_2,H_2 O` and `O_3`.

A

`H_2O_2 lt O_3 lt O_2`

B

`O_2 lt O_3 lt H_2O_2`

C

`O_3 lt O_2 lt H_2O_2`

D

`O_3 lt H_2O_2 lt O_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`O_2` contains O=O (double bond)
Thus O-O bond length in `O_2` is least.
`H_2O_2` contains H-O-O-H (O-O single bond).
Thus O-O bond length in `H_2O_2` is greatest.
`O_3` is a resonance hybrid of the following two structures

Therefore O-O bond length in `O_3` is more than that in `O_2` but less than that in `H_2O_2`. Therefore
`O_2 lt O_3 lt H_2O_2`
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