Question

Why is NaCl preferred to other chlorides in preparation of HCl gas ?

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Answer 1

Answer:

Hydrogen chloride gas is prepared by treating Sodium chloride with concentrated sulphuric acid. The HCl gas is passed through a drying agent to remove moisture where concentrated sulphuric acid plays the role of dehydrating agent as well.

(ii) NaCl+H2SO4→NaHSO4+HCl(g)

Answer 2

Answer:

Sodium chloride is used due to abundant in nature and hence it's low cost .

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