The diagram given below is to prepare iron [III] chloride in the laboratory:

(i) What is substance B?

(ii) What is the purpose of B?

(iii) Why is iron[III] chloride to be stored in a closed container?

(iv) Write the equation for the reaction between iron and chlorine.

Select the correct answer from A, B, C, D and E

A. Nitroso iron [II] sulphate

B. Iron [III] chloride

C. Chromium sulphate

D. Lead chloride

E. Sodium chloride

(i) A deliquescent compound

(ii) A compound soluble in hot water but insoluble in cold water.

(iii) A compound which in the aqueous solution state, is neutral in nature.

Give equations for the following conversions A to E-

${\mathrm{ZnSO}}_4\stackrel{\mathrm{A}}{\to }{\mathrm{ZnCO}}_3\stackrel{\mathrm{B}}{\to }\mathrm{Zn}{\left({\mathrm{NO}}_3\right)}_2\stackrel{\mathrm{C}}{\to }\mathrm{Zn}{\left(\mathrm{OH}\right)}_2\stackrel{\mathrm{D}}{\to }\mathrm{ZnO}\stackrel{\mathrm{E}}{\to }{\mathrm{ZnSO}}_4$

For the preparation of the following salt- give a balanced equation.

Copper [II] sulphate from copper [II] oxide.

For the preparation of the following salt- give a balanced equation.

Iron [III] chloride from the metal ion.

For the preparation of the following salt- give a balanced equation.

Potassium sulphate from $\mathrm{KOH}$ solution.

For the preparation of the following salt- give a balanced equation.

Lead [II] chloride from lead carbonate (give two equations).