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प्रश्न
Give equation to prepare the following as directed
MgCO3 from MgCl2
उत्तर
\[\ce{MgCI2 + Ca(OH)2 -> Mg(OH)2 + CaCI2}\]
\[\ce{Mg(OH)2 + 2CO2 -> Mg(HCO3)2}\]
\[\ce{Mg(HCO3)2 -> MgCO3 + CO2 + H2O}\]
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संबंधित प्रश्न
Write a balanced chemical equation for the preparation of the following salts
Copper carbonate
How is the following salt prepared:
Calcium sulphate from calcium carbonate,
How is the following salt prepared:
Lead (II) oxide from lead.
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.
Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate
| Dilute sulphuric acid |
Copper, Iron, |
Copper carbonate, Sodium carbonate |
Carbon dioxide and sulphur dioxide gas can be distinguished by using ______.
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.
Lead chloride from lead carbonate (two equations)
Fill in the blanks with suitable words:
An acid is a compound which when dissolved in water forms hydronium ions as the only ______ ions. A base is a compound which is soluble in water and contains ______ ions. A base reacts with an acid to form a ______ and water only. This type of reaction is known as ______.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A covalent oxide of a metalloid.
