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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 |
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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
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संबंधित प्रश्न
Describe giving all practical details, how would you prepare:
lead sulphate from metallic lead.
Give the preparation of the salt shown in the left column by matching with the methods given in the right column. Write a balanced equation for each preparation.
| Salt | Method of preparation |
| Zinc Sulphate | Precipitation |
| Ferrous sulphide | Oxidation |
| Barium Sulphate | Displacement |
| Ferric sulphate | Neutralisation |
| Sodium sulphate | Synthesis |
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 iron (III) chloride.
State how would you prepare copper (II) oxide from
Copper nitrate
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
Some methods used for the laboratory preparation of salts are:
(a) Metal + acid
(b) Carbonate + acid
(c) Precipitation
(d) Direct combination
(e) Titration
Copy and complete the following table :
| Salt | Method of Preparation |
| Ammonium Sulphate | |
| Calcium carbonate | |
| Iron (III) chloride | |
| Lead nitrate | |
| Zinc sulphate |
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphate
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphide
Explain the following method with example.
Direct combination
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.
