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Sulphuric Acid — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistrySulphuric Acid2 Marks
Question
Why is $H_2SO_4$ is not used as a drying agent for $H_2S$?
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Answer

Sulphuric acid is not used as a drying agent for $H_2S$ because it reacts with $H_2S$ to form sulphur.
$H_2SO_4 + H_2S \rightarrow 2H_2O + SO_2 + S ↓$

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