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प्रश्न
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
उत्तर
`"Na"_2"O"` (metal oxide) is basic oxide
To obtain alkali from `"Na"_2"O"`, dissolve basic oxide in water
\[\ce{Na2O + H2O->\underset{\text{alkali}}{2NaOH}}\]
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संबंधित प्रश्न
Explain, giving one example of the following chemical change:
Thermal dissociation
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NH4Cl → NH3 + HCl
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|
a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) |
i. Photochemical decomposition |
|
b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\] |
ii. Thermal decomposition |
|
c. \[\ce{2KCI ->[Electricity] 2K + CI2}\] |
iii. Displacement reaction |
|
d. \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\] |
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| List I | List II |
| 1. Light green to black | A: Copper carbonate |
| 2. White to yellow [heated state] | B: Hydrated Copper sulphate |
| 3. Blue to black | C: Copper nitrate |
| 4. Orange to green | D: Ammonium dichromate |
| 5. Blue to white | E: Zinc nitrate |
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