Advertisements
Advertisements
प्रश्न
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:
Anhydrous ferric chloride.
उत्तर
The best method of preparing anhydrous ferric chloride is the method A – direct combination of two elements.
\[\ce{2Fe + 3Cl2 ->[\Delta]\underset{Anhydrous ferric chloride}{2FeCl3}}\]
APPEARS IN
संबंधित प्रश्न
Write a balanced chemical equation for the following:
Preparation of methane from iodomethane.
How is the following salt prepared:
Lead carbonate from lead nitrate.
Describe giving all practical details, how would you prepare:
lead sulphate from metallic lead.
State how would you prepare copper (II) oxide from
Copper nitrate
Define the following term : Neutralisation
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 equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
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 chloride.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
An oxide which when dissolved in water form acid.
