In the laboratory preparation of hydrochloric acid, hydrogen chloride gas is dissolved in water.
(iii) Write balanced chemical equations for the laboratory preparation of $HCl$ gas when the reaction is :
A. Below ${200}^{\circ }C$
B. Above ${200}^{\circ }C$

Q.

In the laboratory preparation of hydrochloric acid, HCl gas is dissolved in water.
(i) Draw a diagram to show the arrangement used for the absorption of HCl in water.
(ii) Why is such an arrangement necessary? Give two reasons.
(iii) Write the chemical equation for the laboratory preparation of HCl gas when the reactants are:
(a) below 200°C
(b) above 200°C

Q. (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.

Q. In the laboratory preparation of hydrochloric acid, hydrogen chloride gas is dissolved in water.
(i) Draw a diagram to show the arrangement used for the absorption of $HCl$ gas in water.

Q.

(a) Name the chemicals required for the preparation of carbon dioxide in the laboratory.

(b) How will you collect the gas?

(c) Write the balanced chemical equation for the above reaction.

(d) Why is sulphuric acid not used for the preparation of carbon dioxide in the laboratory?

Q. For the preparation of hydrochloric acid in the laboratory.
(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?