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प्रश्न
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
lead sulphate using dilute sulphuric acid.
उत्तर
\[\ce{Pb(OH)2 + dilute H2SO4 → PbSO4 + 2H2O}\]
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संबंधित प्रश्न
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
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.
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 |
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
Choosing the correct words given in brackets, complete the sentence given below: Sodium sulphate from sodium carbonate.
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
Give the equation for the preparation of the following salt from the starting material given.
Iron (III) Chloride from Iron
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A covalent oxide of a metalloid.
Mention the colour change observed when the following indicator is added:
| Solution | Acids | Alkalies |
| Alkaline phenolphthalein solution |
