Write the chemical equation for the laboratory preparation of hydrogen chloride gas mentioning the reaction condition.

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Solution

The chemical equations for the laboratory preparation of hydrogen chloride gas are:
$\underset{Sodium chloride}{NaCl (s)} + \underset{S u l p h u r i c a c i d}{H_{2} S O_{4} (l)} \overset{< 200^{0} C}{\to} \underset{S o d i u m h y d r o g e n s u l p h a t e}{N a H S O_{4} (s)} + \underset{H y d r o g e n c h l o r i d e}{H C l (g)} \underset{S o d i u m c h l o r i d e}{2 N a C l (s)} + \underset{S u l p h u r i c a c i d}{H_{2} S O_{4} (l)} \overset{> 200^{0} C}{\to} \underset{S o d i u m s u l p h a t e}{N a_{2} S O_{4} (s)} + \underset{H y d r o g e n c h l o r i d e}{2 H C l (g)}$

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Q. Write the equation for its laboratory preparing of hydrogen chloride gas mentioning the condition required.

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Write the chemical equation for the laboratory preparation of hydrogen chloride gas mentioning the reaction condition.

The chemical equations for the laboratory preparation of hydrogen chloride gas are:NaCl(s)Sodiumchloride+H2SO4(l)Sulphuricacid→<2000CNaHSO4(s)Sodiumhydrogensulphate+HCl(g)Hydrogenchloride2NaCl(s)Sodiumchloride+H2SO4(l)Sulphuricacid→>2000CNa2SO4(s)Sodiumsulphate+2HCl(g)Hydrogenchloride