Write balanced chemical equation for the laboratory preparation of:
Hydrogen chloride gas

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Solution

In laboratory, preparation of Hydrogen chloride gas( $HCl$ ) is done by reaction of concentrated sulphuric acid( $H_{2} {SO}_{4}$ ) with sodium chloride( $NaCl$ )
Reaction: $NaCl + H_{2} {SO}_{4} \overset{< 200 ° C}{\to} {NaHSO}_{4} + HCl (gas) NaCl + H_{2} {SO}_{4} \overset{> 200 ° C}{\to} {Na}_{2} {SO}_{4} + HCl (gas)$

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Write balanced chemical equation for the laboratory preparation of:Hydrogen chloride gas

In laboratory, preparation of Hydrogen chloride gas(HCl) is done by reaction of concentrated sulphuric acid(H2SO4) with sodium chloride(NaCl)Reaction: NaCl+H2SO4→<200°CNaHSO4+HCl(gas)NaCl+H2SO4→>200°CNa2SO4+HCl(gas)

Write balanced chemical equation for the laboratory preparation of:
Hydrogen chloride gas