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प्रश्न
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 |
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उत्तर
(i) Preparation of Sodium Sulphate :
Sodium Carbonate + Dilute Sulphuric acid → Sodium Sulphate + Water + Carbon dioxide.
\[\ce{Na2CO3 + H2SO4 →Na2SO4 + H2O + CO2}\]
(ii) Preparation of Copper Sulphate :
Copper Carbonate + dilute Sulphuric acid → Copper Sulphate + water + carbon dioxide.
\[\ce{CuCO3 + H2SO4 → CuSO4 + H2O + CO2}\]
(iii) Preparation of iron (II) sulphate :
Iron + dilute Sulphuric acid → Iron (II) Sulphate + Hydrogen
\[\ce{Fe + H2SO4 → FeSO4 + H2}\]
(iv) Preparation of Zinc Carbonate :
\[\ce{Zn + H2SO4(dil) → ZnSO4 + H2}\]
\[\ce{ZnSO4 + Na2CO3 → ZnCO3 + Na2SO4}\]
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संबंधित प्रश्न
Describe giving all practical details, how would you prepare:
lead sulphate from metallic lead.
Choose the method of preparation of the following salts, from the methods given in the list:
[List : A. Neutralization B. Precipitation C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate
(iv) Iron (III) chloride
State how would you prepare copper (II) oxide from
Copper nitrate
Give equation to prepare the following as directed
NaHCO3 from Na2CO3
Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
Match the salts given in Column I with their method of preparation given in Column II:
| Column I | Column II | ||
| (i) | Pb(NO3)2 from PbO | (a) | Simple displacement |
| (ii) | MgCl2 from Mg | (b) | Titration |
| (iii) | FeCl3 from Fe | (c) | Neutralization |
| (iv) | NaNO3 from NaOH | (d) | Precipitation |
| (v) | ZnCO3 from ZnSO4 | (e) | Combination |
Give the equation for the preparation of the following salt from the starting material given.
Lead chloride from lead carbonate (two equations)
Name the method used for preparation of the following salts from the list given below:
(i) Sodium nitrate
(ii) Iron (III) chloride
(iii) Lead chloride
(iv) Zinc sulphate
(v) Sodium hydrogen sulphate
List :
(a) Simple displacement
(b) Neutralization
(c) Decomposition by acid
(d) Double decomposition
(e) Direct synthesis
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.
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 zincate.
