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Question
What property of conc. H2SO4 is made use of in the following case? Give an equation for the reaction in this case:
Hydrogen chloride gas is passed through concentrated sulphuric acid.
Chemical Equations/Structures
Very Short Answer
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Solution
Hydrogen chloride gas is dried by passing through concentrated sulphuric acid, as it does not react with concentrated sulphuric acid.
The conc. H2SO4 oxidises H2S to SO2.
\[\ce{H2SO4 + H2S -> 2H2O + S + SO2↑}\]
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Chapter 11: Study of Compounds D. Sulphuric Acid - EXERCISE-11 [Page 179]
