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प्रश्न
How would you obtain an alkali from a base.
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उत्तर १
An alkali from a base
Na2CO3 + Ca(OH)2 `Δ/`> 2NaOH + CaCO3
उत्तर २
By the action of water on soluble metallic oxide
\[\ce{\underset{Base}{Na2O}+H2O -> \underset{Alkali}{2NaOH}}\]
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संबंधित प्रश्न
Give one example in the following case:
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Give one example in the following case:
An oxide which is a base.
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Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
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