Chemistry
Write the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Also, write the equations for the reactions.
Hydrogen Chloride
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Answer
The steps required to convert hydrogen chloride to anhydrous iron (III) chloride are:
- Prepare chlorine by reacting oxidising agents (like MnO2, PbO2, Pb3O4) with conc. HCl.
MnO2 + 4HCl (conc.) ⟶ MnCl2 + Cl2 +2H2O - Now, pass the chlorine (prepared) over conc. H2SO4 for drying.
- Then the dry chlorine is heated over with iron to give anhydrous iron (III) chloride FeCl3.
2Fe + 3Cl2 ⟶ 2FeCl3
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