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प्रश्न
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 |
उत्तर
| Salt | Method of Preparation |
| Zinc sulphate | Displacement |
| Ferrous sulphide | Synthesis |
| Barium sulphate | Precipitation |
| Sodium sulphate | Neutralization |
i) Preparation of Zinc Sulphate by displacement method:
Zn + H2SO4 → 2ZnSO4 + H2
ii) Preparation of Ferrous sulphide by synthesis method:
Fe + S → FeS
iii) Preparation of Barium sulphate by precipitation method:
BaCI2 + H2SO4 → BaSO4 + 2HCI
iv) Preparation of Sodium sulphate by neutralization method:
2NaOH + H2SO4 → Na2SO4 + 2H2O
APPEARS IN
संबंधित प्रश्न
Distinguish between the given pairs of compounds using the test given within brackets:
A lead salt and a zinc salt (using excess ammonium hydroxide)
How is the following salt prepared:
Lead (II) oxide from lead.
How is the following salt prepared:
Magnesium carbonate from magnesium chloride.
State how would you prepare copper (II) oxide from
copper sulphate
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
State the inference drawn from the following observation:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide Identify S.
What is the difference between the chemical nature of an aqueous solution of HCl and an aqueous solution of NH3
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.
You are provided with the following chemicals:
NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
Using the suitable chemicals from the given list only, state briefly how you would prepare sodium zincate.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
D is a soluble salt of zinc.
