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प्रश्न
Explain the following reaction.
Hydrated alumina is treated with aqueous NaOH solution.
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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