Name the method used for preparation of the following salts from the list given below:
(i) Sodium nitrate
(ii) Iron (III) chloride
(iii) Lead chloride
(iv) Zinc sulphate
(v) Sodium hydrogen sulphate.
List:
(a) Simple displacement
(b) Neutralization
(c) Decomposition by acid
(d) Double decomposition
(e) Direct synthesis

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Solution

Salt Method of Preparation

(i) Sodium nitrate (b) Neutralisation

(ii) Iron (III) chloride (e) Direct synthesis

(iii) Lead chloride (d) Double decomposition

(iv) Zinc sulphate (a) Simple displacement

(v) Sodium hydrogen sulphate (c) Decomposition by acid

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Q. Some methods used for the laboratory preparation of salts are:
(a) Metal + acid
(b) Carbonate + acid
(c) Precipitation (double decomposition)
(d) Direct combination
(e) Titration
Copy and complete the following table:

Salt	Method of Preparation
Ammonium sulphate Calcium carbonate Iron (III) chloride Lead nitrate Zinc sulphate	E

Which of the following methods, A, B, C, D, or E is generally used for preparing the chlorides listed below from (i) to (v). Answer by writing down the chloride and the letter pertaining to the corresponding method. Each letter is to be used only once.

A. The action of an acid on a metal,

B. The action of an acid on an oxide or carbonate,

C. Direct combination,

D. Neutralization of an alkali by an acid

E. Precipitation (double decomposition)

(i) Copper (II) chloride

(ii) Iron (II) chloride

(iii) Iron (III) chloride

(iv) Lead (II) chloride

(v) Sodium chloride

Q. Which of the following methods, (a), (b), (c), (d) or (e) is generally used for preparing the chlorides listed below from (i) to (v). Answer by writing down the chloride and the letter pertaining to the corresponding method. Each letter is to be used only once.
(a) Action of an acid on a metal.
(b) Action of an acid on an oxide or carbonate.
(c) Direct combination.
(d) Neutralisation of an alkali by an acid.
(e) Precipitation (double decomposition).
(i) copper (II) chloride
(ii) iron (III) chloride)
(iii) iron (II) chloride
(iv) lead (II) chloride
(v) sodium chloride

Q. Write equations for the laboratory preparation of the following salts, using sulphuric acid:
(i) iron (II) sulphate from the iron.
(ii) copper sulphate from copper.
(iii) lead sulphate from lead nitrate.
(iv) sodium sulphate from sodium carbonate.

(b) From the list of substances given below, choose the pair required to prepare the salts (i) to (iii) in the laboratory and write down the relevant equations. The substances are
chlorine, iron, lead, lead nitrate solution, sodium nitrate solution, iron (III) carbonate, lead carbonate, iron (III) hydroxide, sodium hydroxide solution and dilute hydrochloric acid. The salts are
(i) sodium chloride.
(ii) lead chloride.
(iii) anhydrous iron (III) chloride.

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Salt	Method of Preparation
(i) Sodium nitrate	(b) Neutralisation
(ii) Iron (III) chloride	(e) Direct synthesis
(iii) Lead chloride	(d) Double decomposition
(iv) Zinc sulphate	(a) Simple displacement
(v) Sodium hydrogen sulphate	(c) Decomposition by acid

Salt Method of Preparation (i) Sodium nitrate (b) Neutralisation (ii) Iron (III) chloride (e) Direct synthesis (iii) Lead chloride (d) Double decomposition (iv) Zinc sulphate (a) Simple displacement (v) Sodium hydrogen sulphate (c) Decomposition by acid

Salt Method of Preparation

(i) Sodium nitrate (b) Neutralisation

(ii) Iron (III) chloride (e) Direct synthesis

(iii) Lead chloride (d) Double decomposition

(iv) Zinc sulphate (a) Simple displacement

(v) Sodium hydrogen sulphate (c) Decomposition by acid