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प्रश्न
State how would you prepare copper (II) oxide from
Copper Carbonate
उत्तर
Preparation from Copper Carbonate :
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संबंधित प्रश्न
How is the following salt prepared:
Lead (II) oxide from lead.
Explain why fused calcium chloride is used in the preparation of FeCI3?
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
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 using other substance: Iron (II) chloride
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphate
State the inference drawn from the following observation:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide Identify S.
Explain the following method with example.
Direct combination
Mention the colour change observed when the following indicator is added:
| Solution | Acids | Alkalies |
| Alkaline phenolphthalein solution |
