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Question
- What must be added to sodium chloride to prepare hydrogen chloride?
- Write the equation for the reaction which takes place in question (a).
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Solution
- Sulphuric acid must be added to sodium chloride to prepare hydrogen chloride.
-
\[\ce{\underset{Sodium Chloride}{NaCl} + \underset{Sulphuric acid(Conc{.})}{H2SO4} ->[\lt 200^\circ C] \underset{Sodium hydrogen sulphate}{NaHSO4} + \underset{Hydrogen chloride gas}{HCl}}\]
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