Chemistry
Name the acid used for the preparation of - hydrogen chloride gas in the laboratory. State why this particular acid is preferred to other acids.
Hydrogen Chloride
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Answer
Conc. H2SO4 is used for the preparation of hydrogen chloride gas in the laboratory.
As conc. H2SO4 is non-volatile and has a high boiling point, therefore, it displaces the volatile hydrogen chloride from the salt sodium chloride. Hence, conc. H2SO4 is used as a reactant in the laboratory preparation of HCl from sodium chloride
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