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प्रश्न
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 |
उत्तर
| Column I | Column II | ||
| (i) | Pb(NO3)2 from PbO | (c) | Neutralization |
| (ii) | MgCl2 from Mg | (a) | Simple displacement |
| (iii) | FeCl3 from Fe | (e) | Combination |
| (iv) | NaNO3 from NaOH | (b) | Titration |
| (v) | ZnCO3 from ZnSO4 | (d) | Precipitation |
APPEARS IN
संबंधित प्रश्न
Explain why It is necessary to find out the ration of reactants required in the preparation of sodium sulphate.
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
Give the preparation of the salt given in the left column by matching with the methods given in the right column. Write balanced equations for each preparation.
| Salt | Method of Preparation |
| Zinc sulphate | Precipitation |
| Ferrous sulphide | Displacement |
| Barium sulphate | Neutralization |
| Sodium sulphate | Synthesis |
Give equation to prepare the following as directed
MgCO3 from MgCl2
Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate
| Dilute sulphuric acid |
Copper, Iron, |
Copper carbonate, Sodium carbonate |
Choosing the correct words given in brackets, complete the sentence given below: Copper sulphate from copper.
The diagram given below is to prepare iron (III) chloride in the laboratory.
(i) What is substance B?
(ii) What is the purpose of B?
(iii)Why is iron (III) chloride to be stored in a closed container?
(iv) Write the equation for the reaction between iron and chloride ?
Write the equation for the following reaction:
Magnesium sulphate solution is mixed with barium chloride solution.
Match the salts underlined in Column A with the most suitable method of preparation given in Column B.
| Column A | Column B | ||
| (a) | \[\ce{ZnCl2 \text{from} Zn}\] | 1. | Precipitation |
| (b) | \[\ce{KNO3 \text{from} KOH}\]. | 2. | Direct combination |
| (c) | \[\ce{CaCO3 \text{from} CaCl2}\]. | 3. | Displacement reaction |
| 4. | Neutralization |
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.
