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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
\[\ce{\underset{Base}{Na2O}+H2O -> \underset{Alkali}{2NaOH}}\]
संबंधित प्रश्न
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A base which does not contain a metal ion.
Distinguish between acid and alkali (other than indicators).
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Match the important chemicals given in Column (A) with the chemical formulae given in Column (B)
| Column (A) | Column (B) |
| (a) Plaster of Paris | Ca(OH)2 |
| (b) Gypsum | CaSO4. 1/2 H2O |
| (c) Bleaching Powder | CaSO4.2H7O |
| (d) Slaked Lime | CaOCl2 |
Name the base which is present in a window cleaner.
______ are bitter in taste.
______ alkali has a relatively high percentage of alkali in its aqueous solution.
NaOH & KOH are strong bases.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
