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प्रश्न
Carbon dioxide and sulphur dioxide gas can be distinguished by using ______.
पर्याय
moist blue litmus paper
lime water
acidified potassium dichromate paper
none of the above
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उत्तर
संबंधित प्रश्न
Name the procedure used to prepare a sodium salt such as sodium sulphate.
How is the following salt prepared:
Lead carbonate from lead nitrate.
How is the following salt prepared:
Magnesium carbonate from magnesium chloride.
How is the following salt prepared:
Copper (II) sulphate from copper (II) oxide?
Give the preparation of the salt given in the left column by matching with the methods given in the right column. Write balanced equations for each preparation.
| Salt | Method of Preparation |
| Zinc sulphate | Precipitation |
| Ferrous sulphide | Displacement |
| Barium sulphate | Neutralization |
| Sodium sulphate | Synthesis |
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
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 |
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
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 sulphate.
