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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:
Sodium sulphate.
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उत्तर
The best method of preparing sodium sulphate is the method D – titration of a dilute acid with a solution of soluble base.
\[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2\uparrow}\]
\[\ce{Na2SO4 + 10H2O -> Na2SO4.10H2O}\]
संबंधित प्रश्न
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
Choose the method of preparation of the following salts, from the methods given in the list:
[List : A. Neutralization B. Precipitation C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate
(iv) Iron (III) chloride
State how would you prepare copper (II) oxide from
Copper nitrate
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
lead sulphate using dilute sulphuric acid.
Choosing the correct words given in brackets, complete the sentence given below: Lead sulphate from lead nitrate.
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)
What is the first step that is required to prepare lead sulphate from lead carbonate?
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
Match the salts given in Column I with their method of preparation given in Column II:
| Column I | Column II | ||
| (i) | Pb(NO3)2 from PbO | (a) | Simple displacement |
| (ii) | MgCl2 from Mg | (b) | Titration |
| (iii) | FeCl3 from Fe | (c) | Neutralization |
| (iv) | NaNO3 from NaOH | (d) | Precipitation |
| (v) | ZnCO3 from ZnSO4 | (e) | Combination |
Write the equation for the following reaction:
Magnesium sulphate solution is mixed with barium chloride solution.
What is the difference between the chemical nature of an aqueous solution of HCl and an aqueous solution of NH3
