Which of the following reactions does not involve liberation of oxygen?

Which of the following reactions does not involve liberation of oxygen?
  1. $\mathrm{XeF}_4+\mathrm{H}_2 \mathrm{O} \longrightarrow$
  2. $\mathrm{XeF}_4+\mathrm{O}_2 \mathrm{~F}_2 \longrightarrow$
  3. $\mathrm{XeF}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow$
  4. $\mathrm{XeF}_6+\mathrm{H}_2 \mathrm{O} \longrightarrow$

Solution

$\mathrm{XeF}_6+3 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{XeO}_3+6 \mathrm{HF}$

Asked in: AP EAMCET 2016

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