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प्रश्न
Explain why fused calcium chloride is used in the preparation of FeCI3?
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उत्तर
As iron (III) chloride (FeCl3) is highly deliquescent, so it is kept dry with the help of fused calcium chloride.
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संबंधित प्रश्न
How would you obtain salt from another salt?
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
How is the following salt prepared:
Lead (II) oxide from lead.
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) sulphide
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: Copper sulphate from copper.
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.
Select the word/s given which are required to correctly complete the blanks.
When solution M and O are mixed together, the products will be ______ and ______.
For the preparation of the following salts - give a balanced equation in the following case.
Lead [II] chloride from lead carbonate [give two equations]
