Advertisements
Advertisements
प्रश्न
State how would you prepare copper (II) oxide from
Copper Carbonate
Advertisements
उत्तर
Preparation from Copper Carbonate :
\[\ce{CuCO3 ->CuO + CO2 ^}\]
APPEARS IN
संबंधित प्रश्न
Distinguish between the given pair of compounds using the test given within bracket:
A lead salt and a zinc salt (using excess ammonium hydroxide)
Name the procedure used to prepare a sodium salt such as sodium sulphate.
State how would you prepare copper (II) oxide from
copper sulphate
Give equation to prepare the following as directed
MgCO3 from MgCl2
Give equation to prepare the following as directed
NaHCO3 from Na2CO3
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 balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphate
Give the equation for the preparation of the following salt from the starting material given.
Lead chloride from lead carbonate (two equations)
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.
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.
