In the laboratory preparation of hydrochloric acid, hydrogen chloride gas is dissolved in water.
(ii) State why such an arrangement is necessary. Give two reasons for the same.

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Solution

Such an arrangement is necessary because of the below reasons:

To prevent back suction of water into the apparatus.

To provide a large surface area for dissolution of hydrogen chloride gas.

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Similar questions

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

How will you prepare hydrochloric acid in laboratory?

Describe briefly the method employed to dissolve hydrogen chloride gas in water as it is prepared. What is the purpose of funnel while preparing hydrochloric acid from HCl gas?

Hydrogen chloride gas is very soluble in water. It is dissolved in water to prepare hydrochloric acid by using an anti-suction device, as shown in the diagram. Very briefly explain, how this device prevents the suction of water into the flask, in which hydrogen chloride gas is produced.

Explain, why (or give reasons for)
(i) In the laboratory preparation of hydrogen chloride from sodium chloride, the gas can be obtained below 200°C or above. But the lower temperature is preferred.
(ii) Hydrogen chloride is not collected over water.
(iii) Hydrochloric acid cannot be concentrated above 22.2% by boiling.
(iv) HCl gas does not conduct electricity, but hydrochloric acid conducts electricity.
(v) Only a very dilute solution of hydrogen chloride in water can be concentrated by boiling the solution while a very concentrated solution would become less concentrated when boiled.
(vi) When the stopper of a bottle full of HCl gas is opened there are fumes in the air.
(vii) A solution of HCl gas in water turns blue litmus red and conducts electricity, while HCl gas dissolves in toluene and it has no effect on litmus and does not conduct electricity.
(viii) An aqueous solution of chlorine is acidic in nature.

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?

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In the laboratory preparation of hydrochloric acid, hydrogen chloride gas is dissolved in water. (ii) State why such an arrangement is necessary. Give two reasons for the same.

Such an arrangement is necessary because of the below reasons: To prevent back suction of water into the apparatus. To provide a large surface area for dissolution of hydrogen chloride gas.

In the laboratory preparation of hydrochloric acid, hydrogen chloride gas is dissolved in water.
(ii) State why such an arrangement is necessary. Give two reasons for the same.

Such an arrangement is necessary because of the below reasons:

To prevent back suction of water into the apparatus.

To provide a large surface area for dissolution of hydrogen chloride gas.