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प्रश्न
Explain the following reaction.
Hydrated alumina is treated with aqueous NaOH solution.
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उत्तर
When hydrated alumina is added to sodium hydroxide, the former dissolves in the latter because of the formation of sodium meta-aluminate.
\[\ce{Al_2O_3 . 2H_2O + 2NaOH -> 2 NaAlO_2+ 3H_2O}\]
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