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प्रश्न
Give equation to prepare the following as directed
MgCO3 from MgCl2
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उत्तर
\[\ce{MgCI2 + Ca(OH)2 -> Mg(OH)2 + CaCI2}\]
\[\ce{Mg(OH)2 + 2CO2 -> Mg(HCO3)2}\]
\[\ce{Mg(HCO3)2 -> MgCO3 + CO2 + H2O}\]
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संबंधित प्रश्न
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
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Match the salts underlined in Column A with the most suitable method of preparation given in Column B.
| Column A | Column B | ||
| (a) | \[\ce{ZnCl2 \text{from} Zn}\] | 1. | Precipitation |
| (b) | \[\ce{KNO3 \text{from} KOH}\]. | 2. | Direct combination |
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| 4. | Neutralization |
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NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
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