Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen2 Marks
Question
Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
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Answer
Industrial preparation: $\text{H}_2\text{O}_2$ is prepared by the auto-oxidation of 2-alkylanthraquinols
2-alkylanthraquinols + (oxidised product)
$2\text{Fe}^{2-}(\text{aq})+2\text{H}^-(\text{aq})+\text{H}_2\text{O}_2(\text{aq})\rightarrow2\text{Fe}^{3+}(\text{aq})+2\text{H}_2\text{O}(\text{l})$
$\text{pbS}+4\text{H}_2\text{O}_2(\text{aq})\rightarrow\text{PbSO}_4(\text{s})+4\text{H}_2\text{O}(\text{l})$
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