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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:
Copper sulphate.
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उत्तर
The best method of preparing copper sulphate is the method C – reaction of a dilute acid with an insoluble base.
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
संबंधित प्रश्न
How would you obtain salt from another salt?
Explain why fused calcium chloride is used in the preparation of FeCI3?
State how would you prepare copper (II) oxide from
Copper Carbonate
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 |
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
Write the equation for the following reaction:
Magnesium sulphate solution is mixed with barium chloride solution.
State the inference drawn from the following observation:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide Identify S.
What is the difference between the chemical nature of an aqueous solution of HCl and an aqueous solution of NH3
Explain the following method with example.
Direct combination
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A covalent oxide of a metalloid.
