The correct order in which the O - O bond length increases in the following is-

1. ${\mathrm{O}}_2<{\mathrm{O}}_3<{\mathrm{H}}_2{\mathrm{O}}_2$
2. ${\mathrm{H}}_2{\mathrm{O}}_2<{\mathrm{O}}_3<{\mathrm{O}}_2$
3. ${\mathrm{O}}_3<{\mathrm{O}}_2<{\mathrm{H}}_2{\mathrm{O}}_2$
4. ${\mathrm{O}}_2<{\mathrm{H}}_2{\mathrm{O}}_2<{\mathrm{O}}_3$

Solution

The increasing order is




Due to resonance in ${\mathrm{O}}_3$, the $\mathrm{O}-\mathrm{O}$ bond length will be in between $\mathrm{O}=\mathrm{O}\mathrm{ }$and $\mathrm{O}-\mathrm{O}$ ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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