Advertisements
Advertisements
प्रश्न
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
For the preparation of the following salts - give a balanced equation in the following case.
Copper [II] sulphate from copper [II] oxide
Advertisements
उत्तर
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
How would you obtain salt from another salt?
State how would you prepare copper (II) oxide from
Copper nitrate
State how would you prepare copper (II) oxide from
Copper Carbonate
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
Define the following term:
Neutralisation
Write equation for the laboratory preparation of the following salt, using sulphuric acid: Iron (II) sulphate from the iron.
Mention the colour changes observed when the following indicators are added:
| Solution | Acids | Alkalies |
| (a) Alkaline phenolphthalein solution | ||
| (b) Methyl orange solution | ||
| (c) Neutral litmus solution |
Match the salts underlined in Column A with the most suitable method of preparation given in Column B.
| Column A | Column B | ||
| (a) | \[\ce{ZnCl2 \text{from} Zn}\] | 1. | Precipitation |
| (b) | \[\ce{KNO3 \text{from} KOH}\]. | 2. | Direct combination |
| (c) | \[\ce{CaCO3 \text{from} CaCl2}\]. | 3. | Displacement reaction |
| 4. | Neutralization |
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.
For the preparation of the following salts - give a balanced equation in the following case.
Lead [II] chloride from lead carbonate [give two equations]
