Chemistry
How will you prove that Hydrochloric acid contains
(i) hydrogen
(ii) chlorine.
Write equations for the reactions.
Hydrogen Chloride
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Answer
(i) Using an active metal below magnesium
Fe + 2HCl ⟶ FeCl2 + H2↑
(ii) Using an oxidising agent not containing lead.
MnO2 + 4HCl ⟶ MnCl2 + 2H2O + Cl2↑
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