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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
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उत्तर
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Describe giving all practical details, how would you prepare:
lead sulphate from metallic lead.
State how would you prepare copper (II) oxide from
copper sulphate
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
Choosing the correct words given in brackets, complete the sentence given below: Copper sulphate from copper.
Choosing the correct words given in brackets, complete the sentence given below: Lead sulphate from lead nitrate.
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.
Potassium sulphate from potassium hydroxide solution
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 |
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.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
An oxide which when dissolved in water form acid.
