Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen2 Marks
Question
How is hydrogen peroxide prepared industrially? Explain why it is stored in coloured waxlined glass or plastic bottles?
✓
Answer
Industrial hydrogen peroxide is obtained by the auto oxidation of 2-ethyl Anthraqunol.
In the above case 1% $\text{H}_2\text{O}_2$ is formed. It is concentrated to 30% by distillation under reduced pressure. The remaining water can be frozen to get pure $\text{H}_2\text{O}_2$ It is stored in wax coated glass bottle because it decomposes in presence of traces of alkali present in glass container, therefore, stored in wax coated glass bottles.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.