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प्रश्न
Write the balanced equation for the preparation of the following compounds, starting from iron and using other substance: Iron (II) chloride
उत्तर
\[\ce{Fe + dilute HCI → FeCI2 + H2}\]
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संबंधित प्रश्न
Name the procedure used to prepare a sodium salt such as sodium sulphate.
How is the following salt prepared:
Copper (II) sulphate from copper (II) oxide?
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 |
Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
State the inference drawn from the following observation:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide Identify S.
Mention the colour change observed when the following indicator is added:
| Solution | Acids | Alkalies |
| Alkaline phenolphthalein solution |
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:
Copper 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 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 iron (II) sulphate.
