The following is a list of methods for the preparation of salts.

A - direct combination of two elements.

B - reaction of a dilute acid with a metal.

C - reaction of a dilute acid with an insoluble base.

D - titration of a dilute acid with a solution of soluble base.

E - reaction of two solutions of salts to form a precipitate.

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case :

1. Anhydrous ferric chloride, 2. Lead chloride,

3. Sodium sulphate, 4. Copper sulphate.

Q. The following is the list of methods for the preparation of salts.​

(A) Direct combination of two elements.​

(B) reaction of dilute acid with a metal.​

(C) Reaction of dilute acid with an insoluble base.​

(D) Titration of dilute acid with a solution of soluble base.​

(E) Reaction of two solutions of salts to form a precipitate.​

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case:​

4. Copper sulphate​

Q. The following is the list of methods for the preparation of salts.​

(A) Direct combination of two elements.​

(B) reaction of dilute acid with a metal.​

(C) Reaction of dilute acid with an insoluble base.​

(D) Titration of dilute acid with a solution of soluble base.​

(E) Reaction of two solutions of salts to form a precipitate.​

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case:​

3. Sodium sulphate​

Q. The questions (i) to (v) refer to the following salt solutions listed (a) to (f):
(a) Copper nitrate
(b) Iron (II) sulphate
(c) Iron (III) chloride
(d) Lead nitrate
(e) Magnesium sulphate
(f) Zinc chloride

(i) Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution?
(ii) Which two solution will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?
(iii) Which solution will give a white precipitate when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
(iv) Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it?
(v) Which solution gives a white precipitate with excess ammonium hydroxide solution?

Q. From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.

Q. The diagram represents the preparation of sodium sulphate salt from dilute $H_{2}S{O}_4$ acid and sodium hydroxide. Sulphurous acid forms two types of salts on reaction with an alkali: