Correct order of $\mathrm{O}-\mathrm{O}$ bond length (increasing) in $\mathrm{O}_{2}, \mathrm{H}_{2}…
- $\mathrm{H}_{2} \mathrm{O}_{2} < \mathrm{O}_{3} < \mathrm{O}_{2}$
- $\mathrm{O}_{2} < \mathrm{O}_{3} < \mathrm{H}_{2} \mathrm{O}_{2}$
- $\mathrm{O}_{3} < \mathrm{O}_{2} < \mathrm{H}_{2} \mathrm{O}_{2}$
- $\mathrm{O}_{3} < \mathrm{H}_{2} \mathrm{O}_{2} < \mathrm{O}_{2}$
Solution

Bond strength $ightarrow$
Double bond $>$ Partial double bond $>$ single bond
Bond length $ightarrow$
Double bond $ < \begin{array}{c}\text { Partial double } \\ \text { bond }\end{array} < $ Single bond
So, Bond length $(0-0)$ order is $ightarrow$
$\mathrm{O}_{2} < \mathrm{O}_{3} < \mathrm{H}_{2} \mathrm{O}_{2}$ ^
Asked in: JEE-TOPICTESTS-CHEMISTRY
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