(i) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
(ii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.

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Solution

(i) Hydrogen chloride gas is prepared by treating Sodium chloride with concentrated sulphuric acid. The $H C l$ gas is passed through a drying agent to remove moisture where concentrated sulphuric acid plays the role of dehydrating agent as well.
(ii) $N a C l + H_{2} S O_{4} \to N a H S O_{4} + H C l (g)$

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(a) Draw a labelled diagram for the laboratory preparation of hydrogen chloride gas.
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(i) Why is the direct absorption of hydrogen chloride gas in water is not feasible?
(ii) What arrangement is done to dissolve hydrogen chloride gas in water?

Q. Name the drying agent used for laboratory preparing of hydrogen chloride gas.

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

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(i) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?(ii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.

(i) 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)

(i) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
(ii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.