Give three distinct tests [apart from using an indicator] you would carry out with solution of HCl to illustrate the typical properties of an acid.

Convert:

(a) Two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.

(b) Insoluble iron(II) oxide to a soluble compound.

(c) Insoluble metal carbonate to a soluble chloride.

(d) Metal sulphide to an offensive smelling gas.

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.

(ii) State why such an arrangement is necessary? Give two reasons for the same.

(iii) Write balanced chemical equations for the laboratory preparation of HCl gas when the reactants are :

    (A) below 200°C

    (B) above 200°C

Study the figure given below and answer the questions that follow :

(i) Identify the gas Y.

(ii) What property of gas Y does this experiment demonstrate?

(iii) Name another gas which has the same property and can be demonstrated through this experiment.