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Question
How would you obtain a base from another base.
Short/Brief Note
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Solution 1
We can obtain a base from another base by double decomposition. The aqueous solution of salts with base precipitates the respective metallic hydroxide.
\[\ce{FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl}\]
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Solution 2
By the action of water on metallic oxide
\[\ce{\underset{Base}{CaO}+ H2O -> \underset{Base}{Ca(OH)2}}\]
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Preparation of Bases
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