Question

What property of conc. H₂SO₄ is made use of the following case? Give an equation for the reaction on the same:
In the production of HCI gas when it reacts with chloride.

Answer 1

Due to its reducing property. i.e, it is a non-volatile acid.
\[\ce{\underset{\text{Conc}}{NaCl} + H2SO4 → NaHSO4 + HCl}\]