Hydrogen chloride gas can be obtained from tetraoxosulphate (6) acid (sulphuric acid) by reacting it with sodium chloride (common salt) in a process known as the Deacon process.
The reaction can be represented as follows:
NaCl + H2SO4 → NaHSO4 + HCl
Hydrogen chloride gas is then obtained by heating the mixture of sodium hydrogen sulfate (sodium bisulfate) and hydrochloric acid.
State how hydrogen chloride gas can be obtained from tetraoxosulphate (6) acid
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