Which acid is used in the preparations of Hydrogen Chloride gas? - Noon Academy

Which acid is used in the preparations of Hydrogen Chloride gas?

Chemistry | Class 10 | ICSE | Selina | Study of Compounds – Hydrogen Chloride

Which acid is used in the preparations of Hydrogen Chloride gas?

Solution:

Concentrated Sulfuric acid (H₂SO₄)

(i) Sodium chloride is treated with strong sulphuric acid to produce hydrogen chloride gas. To remove moisture, the HCl gas is delivered through a drying agent, where concentrated sulphuric acid also acts as a dehydrating agent.

(ii) NaCl+H₂SO₄→NaHSO₄+HCl_(g)

i

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