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प्रश्न
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 salt by giving a suitable equation in the following case:
Lead chloride.
उत्तर
The best method of preparing lead chloride is the method A – direct combination of two elements.
\[\ce{Pb + Cl2 -> \underset{Lead chloride}{PbCl2}}\]
संबंधित प्रश्न
Identify the anion present in the following compounds:
A salt D on treatment with dilute sulphuric acid produces a gas which turns lime water milky but has no effect on acidified potassium dichromate solution
Explain the formation of hydronium ion.
Define in term of ionization an acid.
Give one example : A base which is not an alkali.
The preparation of lead sulphate from lead carbonate is a two step process (lead sulphate cannot be prepared by adding dilute sulphuric acid to lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
The preparation of lead sulphate from lead carbonate is a two step process (lead sulphate cannot be prepared by adding dilute sulphuric acid to lead carbonate)
Why is the direct addition of dilute sulphuric acid to lead carbonate an impractical method of preparing lead sulphate?
Fill in the blank.
An acid is a compound which when dissolved in water forms hydronium ions as the only ______ ions.
Fill in the blank from the choices given in bracket.
When a metallic oxide is dissolved in water, the solution formed has a high concentration of ___________ ions. (H+,H3O+,OH-)
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
B is an insoluble salt.
A black coloured solid which on reaction with dilute sulphuric acid forms a blue coloured solution is ______.
