Chemistry
The drying agent used to dry HCl gas is:
- Conc. H2SO4
- ZnO
- Al2O3
- CaO
Hydrogen Chloride
ICSE 2019
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Answer
Conc. H2SO4
Reason — Drying agent used for drying should only remove the moisture and not react with it, hence, conc. sulphuric acid is used as the drying agent.
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