Explain with the help of the equations, how the following salts can be prepared in the laboratory:
(e) Lead chloride

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Solution

Reaction Summary
By double decomposition precipitation, lead chloride $({PbCl}_{2})$ can be prepared.
In this reaction, lead nitrate $(Pb {({NO}_{3})}_{2})$ reacts with sodium chloride $(NaCl)$ and forms lead chloride $({PbCl}_{2})$ and sodium nitrate $({NaNO}_{3})$ .
Balanced Reaction
The chemical equation is as follows:
$Pb {({NO}_{3})}_{2} (aq) + 2 NaCl (aq) \to {PbCl}_{2} ↓ + 2 {NaNO}_{3} (aq)$

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Explain, why the following statement is not correct:
Lead chloride can be prepared by adding dilute HCl to lead sulphate solution.

Q. What are crystals? How can the crystals of sodium chloride be prepared from common salt?

Q. Give the equation for the preparation of each of the following salts from the starting material given.
(i) Copper sulphate from copper (II) oxide,
(ii) Iron (III) chloride from Iron.
(iii) Potassium sulphate from potassium hydroxide solution.
(iv) Lead chloride from lead carbonate (two equations).

(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.

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.

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Explain with the help of the equations, how the following salts can be prepared in the laboratory:(e) Lead chloride

Explain with the help of the equations, how the following salts can be prepared in the laboratory:
(e) Lead chloride